trek caliber 8 test

Trek X-Caliber 8 hardtail review

• February 14, 2023

There are plenty of plus-points to the Trek X-Caliber 8 hardtail mountain bike, like reliable components and a sure-footed feel

Product Overview

Overall rating:, trek x-caliber 8 2022.

• Tubeless-ready wheels and tyres
• Heaviest bike on test

Manufacturer:

Price as reviewed:.

The Trek X-Caliber 8 is a sure-footed 29er hardtail mountain bike, with plenty of reliable elements that boost its score to impressive levels, but a few missteps that hold it back from quite making it as one of the best hardtail mountain bikes we’ve tested. There’s a whole lot to like though.

Twenty nine inch wheels have long been an integral part of Trek’s mountain bikes, especially the hardtails. And where initially there was uncertainty and hesitation in the industry, Trek pushed on with this larger wheel size and the persistence paid off: with 29in wheels now accepted globally and across all mountain bike categories, not just for the cross country crowd.

Trek’s early 29in wheel bikes were XC hardtails and since then, the X-Caliber has shifted upmarket and now sit between the entry-level Marlin and the carbon Pro-Caliber. All three platforms run 100mm travel forks.

We’ve pulled in the X-Caliber 8 for this review, which is just shy of the Scott Scale 965 in price and shares many of the same components. With all four bikes on test running Shimano brakes and 1×12 transmissions, we were keen to take this consistency a step further and chose models with regular seatposts, rather than droppers. Primarily for comparing the weight of the bikes, but riding dynamics and overall value played a part too as we felt it really levelled the playing field, and maintained the XC hardtail design ethos.

With a steeply sloping top tube and a super-low standover height the X-Caliber is a very striking bike. It’s a silhouette that’s mirrored through all the brand’s hardtails – with the notable exception of the carbon Pro-Caliber – as is the wide size range that Trek is well known for offering. Seven frame sizes are available (with the XS and S rolling on 27.5in wheels to keep proportions in check) with a useful M/L option that’s a great problem solver for riders stuck between the popular M and L options. So hats off to Trek for this level of commitment to getting a good fitting bike.

When it comes to new frame standards, Trek has always been an early adopter, so it’s no surprise to see a tapered head tube and Boost hub spacing on the X-Caliber frame. But it’s Boost with a twist… here, Trek using 141mm rear dropout spacing with a traditional Q/R hub, rather than a 148mm bolt-thru design.

It’s not a deal breaker though, as the fixed rear triangle of a hardtail doesn’t need stiffening up like a full suspension design, and a quick online search reveals plenty of wheel upgrade options from the likes of Hunt, Hope and Bontrager for the 141 standard.

A modern touch that hasn’t been executed as well as on other bikes in test, is the internal frame routing for the cable and rear brake hose – they’re not clamped where they enter the down tube and rattle noisily on rough terrain, just like on the Trek Roscoe in our Hardtail of the Year test.

Trek has equipped the X-Caliber 8 with a RockShox fork and it’s listed as a Judy SL, so we expected to see an upgrade or two. However, all the tech is identical to the regular Judy forks seen on the Cube and Scott – a tapered aluminium steerer, steel upper legs, a Solo Air spring and the brand’s basic TurnKey damper.

The Trek is the only bike in test that doesn’t have a remote lockout lever though, just a simple dial on the top of the fork leg, with an on/off function and no graded adjustment between those points. At least it’s one less cable to maintain and gives more handlebar space for a dropper post remote lever.

And while the X-Caliber frame does not use a bolt-thru rear axle, the 100mm travel Judy fork does have the 15x110mm Boost hub standard – although the website lists the lighter tooled axle as standard, our test bike had the same QR lever operated version as the Scott Scale.

Shimano was slow to filter its 1×12 transmissions down to the lower price points, but it’s there now and proving to be a very popular choice, all four bikes in this test using Shimano drivetrains. The X-Caliber’s specification lists a Shimano chainset, but our bike shipped with a model from FSA, and it’s the only deviation from a complete Shimano drivetrain.

Trek has also gone with a smaller 30t chainring and combined with the Deore 10-51t cassette you get a super-low gear, which is useful on the climbs because at 13.53kg (29.82lb) the Trek is the heaviest bike in test.

Another wise move is the genuine Shimano chain which performs faultlessly in wet filthy conditions and plays well with the steel FSA chainring. The benchmark XT rear mech is good to see, as is the rubber chainstay protector, which is a detail the other three brands seemed to have overlooked.

Performance

The dropped top tube, wider 750mm bar, long wheelbase and slackish 68º head angle (the slackest of the four bikes) give the X-Caliber the look and feel of a trail bike. However, the Trek’s geometry and attitude is not in the same league as the most progressive 100mm trail hardtails such as Kona’s test-winning Mahuna .

Even on this size XL, the frame’s front triangle is very compact, especially when compared to the Giant XTC, but it still sports two sets of bottle cage mounts – essential on an XC bike. In fact, Trek has added plenty of mounts to the X-Caliber, with fittings for a rack and kickstand making it a very capable all-terrain bike.

With one of the lightest wheelsets on test, we expected some zip and liveliness from the X-Caliber but it lacked the immediate urgency of the Scott and Giant and on longer non-stop cross country blasts, its weight was noticeable, certainly towards the end of the ride.

You can’t knock the Trek’s sure-footed nature though – the lengthy wheelbase (for an XC hardtail) and wide bar aid stability, and it was only the Judy fork’s lack of refinement that held us back from diving into more challenging terrain. A slightly shorter stem would no doubt help here too.

Although the compact front end still has a tall 525mm seat tube, the seat stays are dropped, giving a tighter rear triangle. This certainly gives the X-Caliber a chuckable hardtail vibe, but the ride quality was a touch less compliant than the other bikes here.

With that in mind, there’s plenty of frame and fork clearance for higher volume tyres to help smooth the ride further, and Trek helpfully supplies the X-Caliber 8 with rim strips, valves and sealant so you can go tubeless straight from the box and reap the benefits immediately.

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With a sure-footed ride, reliable Shimano components and a sorted tubeless wheelset, it feels like there’s a trail bike hiding under the X-Caliber’s glossy frame finish just waiting to get out, but being held back by the fork and lack of a dropper post. Stepping up a model to the X-Caliber 9 would be our recommendation then, as it gets a dropper post and a more capable and refined fork. Ultimately, the Trek X-Caliber 8’s weight is noticeable and even with the same control tyres fitted to all of the test bikes, the Trek lacks the race-bike urgency of the Scott and Giant.

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Trek Xcaliber 8 Review

February 9, 2023

‍ Key Takeaways

• The X-Caliber 8 uses the latest in materials and components for a quality product.
• It has unique features like internal cables and built-in rack mounts.
• Everything on this bike is built for speed, power, simple controls, and confident handling.
• Climbing and descending is a blast with upright seating and highly responsive shifting.

This article may contain affiliate links where we earn a commission from qualifying purchases.

‍ It’s tough to find a mountain bike that brings speed and maneuverability to singletrack trails, that’s reliable while still providing the right thrills.

The Trek X-Caliber 8 delivers on all counts, with high-quality materials and components fashioned into an excellent choice for your mountain bike needs. It handles ascent and descent like a dream, and is easily upgradable for those who want to tweak their performance even higher.

Out of all the bikes we’ve reviewed, this one is a standout far ahead of the pack. We invite you to explore the many benefits to selecting this bike.

TABLE OF CONTENTS

‍ Where to Buy the Trek X-Caliber 8

The Trek X-Caliber 8 costs $1,699, and can only be purchased through the Trek website .

A Brief History of Trek

Trek Bicycles originally started as a subsidiary of an appliance company. In the early 1980s, they expanded and built their own factory, targeting the high-end bicycle market as well as producing mountain bikes. Advances in technology over time meant that they moved on from their roots of hand-built steel frame bikes into aluminum and carbon fiber.

One notable claim to fame for Trek was their partnership with American champion Lance Armstrong. German rider Jens Voigt also set the first UCI unified hour record on a Trek bike, after the organizational rules were consolidated in 2014.

Trek X-Caliber 8 Review

Trek x-caliber 8 specs and geometry.

There’s a lot to love about the X-Caliber 8. Its high-end finishes, sturdy materials, and great attention to care in manufacturing have produced a quality bike that will last for years on the roughest terrain.

As with many mid-grade and high-end mountain bikes, the X-Caliber 8 features an aluminum frame. This means that the bike will be lighter than others made of steel, while still retaining its structural integrity. This gives it a distinct competitive edge on both fast and rough tracks.

Instead of having separate frame setups for men and women, this bike has a unisex frame that suits both riders. This can create simplicity for first-time buyers, making it an appealing option.

The fork suspension has an impressive 100 millimeters of travel. The standard component on other bikes of this class only allow for 80 millimeters of travel, but the X-Caliber 8 boasts higher-grade parts to get you the most out of your bike. The fork can also be upgraded for a maximum of 120 millimeters of travel, if you feel that you’re going to need that extra oomph to get you where you want to go.

The frame is also built for maximum handling. The chainstays in the rear are shortened a bit to give you the most control possible. In additional to the aluminum frame, every other component on this bike is designed to give you quick response times and get you up to speed quickly.

As with other models in the Trek line, there are multiple sizes to allow for riders of all sizes to find the bike that fits best for them. There are six sizes - from XS to XXL - and you can select the one that’s right for you based on your height and leg length. The website is helpful in showing you the right bike for your size.

What’s more, the multiple sizes also come with corresponding tire sizes. Smaller models in the X-Caliber 8 line have 27.5 inch tires, while the larger ones for 29 inch tires. This helpful consideration means that your bike will be fully customized to your unique needs.

One other feature worth mentioning is the built-in rack mounts. This is another way that Trek has thought ahead on behalf of riders: having the rack mounts built into the bike, rather than forcing riders to buy additional accessories, means that loading and unloading the bike will be quicker and easier, leaving more time for the trail.

Trek X-Caliber 8 Build Quality

We’ve already mentioned the aluminum frame, but Trek has developed an “Alpha Gold” alloy for this bike, making it even stronger than traditional aluminum. This alloy coupled with tapered frame components shows a high attention to detail in maximizing both speed and handling on this bike.

The X-Caliber 8 has a single shifter with twelve speeds. This simplified approach means that you’ll be in total control of your speed and uphill and downhill climbs.

The lightweight frame is also ideal for steeper climbs. More often than not, it is the weight of the bike that can slow even experienced riders on an uphill track, due to having to push a heavier machine upward. The lighter frame solves that problem, making it a plus for experienced riders and an added bonus for newer ones.

The X-Caliber 8 is a hardtail bike, which can mean sacrificing speed in some cases. However, the suspension and lighter weight keep it a higher-speed option, making this perfect for racing down the trail with your friends.

It is also compatible with Trek’s Blendr mounting system. If you plan to take any longer trips that require you to pack extra gear, you can mount it directly to the frame without extra components. This makes the X-Caliber 8 very user-friendly for bikepacking or longer trail rides where you want to have a bit more kit handy.

One other great option with the suspension is the lockout mode. This means that your fork will remain inactive, preventing unwanted bouncing at speed. This is yet another way you won’t have to sacrifice speed on longer stretches of even trail. And when you need it, you can reactivate the suspension to provide that needed cushion on rougher stretches.

One final feature worth pointing out is the internal cable routing. There’s no need to fear a stray branch or rock cutting your cables, since everything is contained inside the frame. This is a premium feature that riders of all skill levels will value.

Trek X-Caliber 8 Handling

We’ve already talked at length about the speed the X-Caliber 8 brings to the party, and we’ll let the results speak for themselves. It has the pedigree of a record holder and world champion, and everything about it was built to max out speed.

Just because it’s fast, however, doesn’t mean that you’re losing out on handling. The hardtail rear end and tapered front end gives you optimized handling throughout the bike. Front and rear handling points are responsive when called upon, and steady when they need to be.

The wider 2.35 inch tires can handle any trail you throw them at, although some riders have complained about sand and mud bogging the bike down. This is one of the rare downsides to this bike, but tires are often one of the first upgrades riders will make to get the most out of their next trail, so no worries if that’s something you need to swap out.

As with many other higher-end bikes, the X-Caliber 8 features hydraulic brakes. This is a hallmark of reliability and quality, giving you confident braking when it’s needed most.

Trek X-Caliber 8 Ride Quality and Performance

The X-Caliber 8 has a ride that feels great over difficult tracks and smooth roads. It features an upright riding position, which is more comfortable on ascents and is still pleasant even after hours in the saddle.

Everything about this bike is tuned to deliver speed for long periods of time. Especially if you’re on a smoother track or road, you can go for hours without tiring too much too quickly, helping you truly get the most out of every ride every time.

The shifter also contributes to this smooth ride. The single gear model with 12 speeds means that you’re not shifting gears too quickly, or having to finesse a complicated system.

Climbing and Descending

Climbing and descending are where the X-Caliber 8 truly shines. We’ve covered some of these features already, but they’re worth repeating.

The locking suspension means that the bike won’t bounce on uphill stretches. This means the ride will be smoother and easier; and coupled with the upright seat, you can climb with confidence and ease.

You can also descend from the upright position, which gives you added control and lets you better see what’s up ahead.

Trek X-Caliber 8 Pros and Cons

Trek x-caliber 8 pros.

The materials on the Trek X-Caliber 8 are built to last, but also built to be light. The aluminum alloy frame can handle the worst punishment you can find on the track, while still being light enough to handle with ease.

The upright seating position and locked suspension both contribute to higher speed capacity with this bike. This is further supported by friendly geometry and a simplified shifting structure. They also create a more comfortable ride, meaning you can go farther and ride longer without fatiguing too quickly.

The internal cable routing is another unique build feature that keeps critical components safe on the trail. And the built-in rack mounts make storage and transport a breeze.

• High-quality materials and components
• Aluminum alloy frame
• High speed capacity
• Upright seating position, even on uphill and downhill grades
• Internal cable routing
• Built-in rack mounts

Trek X-Caliber 8 Cons

There are very few negatives about the X-Caliber 8. The only one worth mentioning is the tires, which may get bogged down in muddier or looser tracks.

• Tires may need to be swapped out for wider options.

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About THE AUTHOR

Danny Lawson

Mountain biking is more than just a hobby for me - it's a way of life. I love the challenge and excitement that comes with it, and I'm always pushing myself to go faster and ride harder. Some people might think that mountain biking is dangerous, but I see it as the only way to live.

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2023 Trek X-Caliber 8 Review

Are you looking for an affordable mountain bike for your cycling needs? Look no further; the 2023 Trek X-Caliber 8 is an ideal choice. 

It offers a blend of performance, versatility, comfort and value that leaves many others vying for consideration.

Trek has been making quality mountain bikes since 1976. 

They have a well-earned reputation as one of the best bike makers in the world and are renowned for their attention to detail and quality manufacturing. 

The Trek X-Caliber 8 is the latest iteration of their entry into the competitive market of mid-priced recreational trail bikes.

This review dives deep into the features and performance provided by this 12-speed aluminum hardtail, along with its geometry specifications, component groupset and build kit options. 

We’ll also discuss how it stacks up against other similar bikes on the market to give you a better idea if it’s the right choice for you. 

By the end, we hope you will have gained enough insight to make an informed decision about this capable trail hardtail from Trek: The 2023 X-Caliber 8!

If you’re looking for a high-performance mountain bike, take a good hard look at the 2023 Trek X-Caliber 8. 

This lightweight hardtail mountain bike features Shimano shifting, and is perfect for cross country or trail riders. Here is a closer look at what makes the Trek X-Caliber 8 unique.

The 2023 Trek X-Caliber 8 is the perfect hybrid bike for bikepacking , gravel riding, and thrashing the local trails. 

With a lightweight alloy frame and capable components, you’ll get an agile and stable ride that is perfect for adventure.

The Shimano Deore 12-speed drivetrain delivers reliable shifting, while the extra-wide 2.35″ Maxxis Ardent Race tires provide an extra level of comfort and control on challenging roads or trails. 

The X-Caliber 8 also features discreet rack and fender mounts that let you carry your gear or keep mud off through all kinds of weather. 

It’s an excellent option for riders who want to embark on some weekend bikepacking adventures.

– Lightweight Alpha Gold Aluminum alloy frame for an efficient ride

– RockShox Judy SL front fork featuring 100mm of travel

– Shimano Deore 12 Speed Drivetrain ensures reliable shifting

– Tubeless ready Maxxis Ardent Race tires provide added stability on gravel and other road surfaces

– Discreet rack and fender mounts offers convenience when loading gear

– Shimano MT200 hydraulic disc brakes providing powerful stopping ability & better control

The 2023 Trek X-Caliber 8 features an Alpha Gold Aluminum frame made from custom formed and butted alloy that is lightweight yet stiff and responsive. 

Geometry has been crafted to provide an optimal seated pedaling position with its low standover height combined with long reach. 

It also includes internal cable routing for a sleek, flush look on all rides.

The 2023 Trek X Caliber 8 comes equipped with Shimano Deore 12 speed drivetrain providing smooth shifting with precise gear changes. Featuring a Shimano MT511, 30t front chainring and crankset paired to a Shimano Deore 10-51t 12 speed cassette, it’s designed to tackle any terrain up or downhill without breaking a sweat! 

It also provides good overall range to suit any rider’s needs.

Rolling on Bontrager Kovee, double-wall, tubeless ready wheels gives you confidence as well as maximum traction – great for taking corners as well as attacking climbs and descents alike! Coupled with 29 x 2.35″ Maxxis Ardent Race tires, you have plenty of rubber on the ground to grip whatever surface lies ahead of you!

With the RockShox Judy SL, Solo Air spring suspension forks fitted at the front, you can expect plenty of travel when hitting big bumps and drops out on the trails! 

The 100mm of travel front will keep your bike feeling in control no matter how rough the ride gets!

Overall Impression

Overall, it’s not hard to see how capable the Trek X-Caliber 8 can be for anyone seeking an ultra-lightweight mountain machine that won’t leave them wanting more power or comfort out on their favorite trails!

You’ll be able to climb faster than ever before thanks to its efficient power transfer combined with light weight design; plus conquer any descent quicker than ever due its stable handling characteristics given by full suspension setup.

All in all if your budget doesn’t stretch too far but want serious performance then this could very well be your next go-to ride – give it try today!

Order online and have it shipped to your local dealer for final assembly!!

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• Crosscountry
• Rider Notes

2022 Trek X-Caliber 8

A 27.5″ / 29″ aluminum frame hardtail crosscountry bike with upper mid-range components. Compare the full range

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A bike with lower gearing will be easier to ride up steep hills, while a higher top end means it will pedal faster down hills.

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Feb 2023 · Seanwhite

The Trek X-Caliber 8 is a sure-footed 29er hardtail mountain bike, with plenty of reliable elements that boost its score to impressive levels, but a few missteps that hold it back from quite making it as one of the best hardtail mountain bikes we’ve tested. There’s a whole lot to like though. Twenty nine inch wheels have long been an integral part of Trek’s mountain bikes, especially the hardtails. And where initially there was uncertainty and hesitation in the industry, Trek pushed on with this larger wheel size and the persistence paid off: with 29in wheels now accepted globally and across all mountain bike categories, not just for the cross country crowd. Trek’s early 29in wheel bikes were XC hardtails and since then, the X-Caliber has shifted upmarket and now sit between the entry-level Marlin and the carbon Pro-Caliber. All three platforms run 100mm travel forks. We’ve pulled in the X-Caliber 8 for this review, which is just shy of the Scott Scale 965 in price and shares many of the same components. With all four bikes on test running Shimano brakes and 1×12 transmissions, we were keen to take this consistency a step further and chose models with regular seatposts, rather than droppers. Primarily for comparing the weight of the bikes, but riding dynamics and overall value played a part too as we felt it really levelled the playing field, and maintained the XC hardtail design ethos. With a steeply sloping top tube and a super-low standover height the X-Caliber is a very striking bike. It’s a silhouette that’s mirrored through all the brand’s hardtails – with the notable exception of the carbon Pro-Caliber – as is the wide size range that Trek is well known for offering. Seven frame sizes are available (with the XS and S rolling on 27.5in wheels to keep proportions in check) with a useful M/L option that’s a great problem solver for riders stuck between the popular M and L options. So hats off to Trek for this level of commitment to getting a good fitting bike. When it comes to new frame standards, Trek has always been an early adopter, so it’s no surprise to see a tapered head tube and Boost hub spacing on the X-Caliber frame. But it’s Boost with a twist… here, Trek using 141mm rear dropout spacing with a traditional Q/R hub, rather than a 148mm bolt-thru design. It’s not a deal breaker though, as the fixed rear triangle of a hardtail doesn’t need stiffening up like a full suspension design, and a quick online search reveals plenty of wheel upgrade options from the likes of Hunt, Hope and Bontrager for the 141 standard. A modern touch that hasn’t been executed as well as on other bikes in test, is the internal frame routing for the cable and rear brake hose – they’re not clamped where they enter the down tube and rattle noisily on rough terrain, just like on the Trek Roscoe in our Hardtail of the …Continue reading »

Tubeless-ready wheels and tyres

Heaviest bike on test

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Last updated August 6 Not listed for 609 days

Trek X Caliber 8 Review: Worth Buying Or Not?

• By Daniel Shakibaie
• Mountain Bike , Trek Bikes

Welcome to my Review for Trek X Caliber 8.

The Trek X Caliber 8 review for mountain bike s might be everything you’re looking for right now. It offers impressive rider handling and allows you to enjoy an adventurous ride in a variety of conditions.

Let’s take a look at this bike’s main features and benefits, along with some important factors to bear in mind when looking for your next mountain bike.

Things to Consider Before Buying a Smart Trail Bike

Before we look at the top factors of the Trek X Caliber 8, below are some important factors to consider when you buy a mountain bike.

Suspension System

There are two suspension systems to consider: hardtail and full. The former comes with a suspension system on the front of the bike, providing half of the shock absorption of a full-suspension bike.

Moreover, a hardtail bike offers a lighter weight overall, which allows you to ride the bike for longer periods of time without feeling like a heavy frame from weighing you down. Alternatively, a full-suspension bike is beneficial for absorbing all of the impacts and shocks that come your way, so you’ll typically feel more comfortable when riding across rough terrain and through woods, for example.

Body Case Material

Secondly, a bike’s body material makes a huge difference in its overall quality, speed, comfort, and more. The most popular body material option is aluminum, which offers a more affordable price compared to titanium, for example. However, aluminum can be more rigid than other materials for frames, meaning that it doesn’t absorb all of the impacts. One of the biggest benefits of a smart frame is its lightweight so that you can cycle quickly. And it’s also rust-resistant, so you won’t have any quality issues when you’re riding in the rain.

Alternatively, steel and alpha gold aluminum, an even more affordable bike body material, absorbs shocks when you’re cycling. This allows you to venture out on a variety of conditions without feeling the impact of every travel over rocks.

You might want to consider a titanium bike frame if you take cycling seriously and want to travel far and quickly. Thanks to this material’s lightweight, the bike picks up speed quickly and maintains this speed with ease. A titanium frame is incredibly agile, which allows the bike to respond to bumps in the road.

However, one of the biggest disadvantages of a titanium bike is its price point. You’ll need a larger budget compared to a steel or aluminum bike, which doesn’t make it appropriate for many riders.

Features and Benefits of the Trek X Caliber 8

Let’s take a look at some of the features and benefits of the Trek X Caliber 8 by taking an in-depth look into this bike’s top specifications.

The Trek X Caliber 8 comes equipped with a performance frame paired with allow rims, which has many benefits. For example, this material of the frame is naturally low in weight, making it an ideal choice for racing and travelling up hills, when you need to keep the overall maximum weight to a minimum.

Aluminum isn’t prone to rust, unlike steel bikes. So this makes the mountain bike low maintenance and ideal for regularly riding in wet conditions. Plus, due to aluminum’s lower strength compared to other bike materials, it tends to come with thicker walls. Therefore, you can use thicker-than-standard tubes without making the bike significantly heavier.

Moreover, the Trek X Caliber 8’s frame provides stiffness, which provides plenty of stability when climbing uphill or sprinting. And this level of stiffness will likely provide an advantage to racing cyclists because it offers an increased speed when sprinting.

This smart bike comes with a RockShox 30 Silver 100 mm suspension fork and a hardtail suspension system. These specifications allow the rider to feel the ride more than with a full-suspension bike, which allows you to experience an adventurist ride.

Another benefit of a hardtail bike over a full-suspension model is its reduced weight. Since the bike doesn’t have an additional shock system to the rear, the mountain bike has a lighter weight, which allows it to pick up speed and travel up hills quicker. And, with this weight saving, you can add accessories to your bikes, such as sports water bottles, fenders, and even a basket.

More: Trek Marlin 5 review: Is It a Good Bike to Have?

Uniquely, this trek bike features a smart wheel size, which means that you’ll receive either 27.5- or 29-inch wheels to accommodate a small or medium/large-sized frame. Therefore, the frame size will be perfectly paired with the bike’s tires, improving responsiveness, speed, and agility.

Moreover, the Trek X Caliber 8 ’s 27.5-inch wheels provide faster acceleration compared to the 29-inch wheels. This allows you to accelerate quickly and gives the bike a more responsive feel that riders will love.

Alternatively, the 29-inch wheels on this mountain bike accelerate slower, giving the bike a less responsive feel. But, once you reach your top speed, the bike maintains this for longer, requiring less effort to keep the momentum going. Not to mention that it’s actually a more efficient option for longer bike rides.

In addition, this smart trek bike comes with 12 speeds, which gives you more control when riding your bike. In particular, you can make the ride more challenging if you want to use it solely for fitness purposes. Or you can use the Trek X Caliber 8 to easily climb steep hills, making it a viable option for rides through the woods, etc.

More: Trek 820 Mountian Bike Review: Worth Having?

The Trek X Caliber 8 is equipped with hydraulic disc brakes. Perhaps the biggest benefit of this type of brake system is that it automatically self-adjusts once they’re worn down. And the calliper’s design retracts a certain distance from the rotor, regardless of the pad’s wear level. Therefore, you don’t need to adjust the bike’s brakes as you would with mechanical pads.

Furthermore, these types of disc brakes dissipate heat evenly compared to traditional mechanical brakes. This means that the brakes are more likely to last a long time and can increase safety when you’re riding your bike.

More: Trek 1120 Review: Is It The Best Touring Bike?

Is the Trek Dual Sport 2 a Better Option Than the Trek X Caliber 8?

When comparing the Trek Dual Sport 2 to the Trek X Caliber 8, the trek dual sport 2 review: a worthwhile investment . With its versatile design and impressive features, the Dual Sport 2 offers a smooth ride on various terrains. On the other hand, the X Caliber 8 is a great choice for off-road enthusiasts looking for speed and performance. Ultimately, choosing between the two depends on your preferences and intended use.

Social Proof

Don’t just take our opinion on this bike ’s excellent performance. Below are some screenshots from customers and users of this bike and what they thought about how it rides.

Alternatives

Since you might want to keep your options open and put this mountain bike’s specifications into perspective, we’ve included a few comparisons with similar bikes.

Trek X Caliber 8 Review vs Trek Marlin 7

There are several differences between both smart bikes. For example, the Trek Marlin 7 features a kickstand, but the Trek X Caliber 8 bike doesn’t, which is an extra item that could catch on the trail.

A big difference between the bikes is the parts they’re made of. With the x Cal, you’ll get an air fork, whereas the Marlin bike comes with a coil spring. This difference in parts can affect how the bike feels on the trail. Check our guide to Trek Marlin 7

Trek X Caliber 8 vs Trek X Caliber 9

Both bikes come with 27.5-inch lightweight parts, but the Caliber 9 boasts a bigger fork and a slightly lighter weight (albeit it by 0.02 pounds). And the 9 Caliber comes with a 100 mm front travel, which allows this particular bike to absorb more shocks than the Caliber 8.

Trek X Caliber 8 vs Trek Roscoe 7

Both of these bikes feature a 27.5-inch frame of aluminum and are hardtail versions. However, the Roscoe 7 comes with a bigger fork and a dropper post. The Caliber 8 is the lightest of the two bikes by nearly three pounds, which might sound like a minute difference, but any additional weight on a bike can impact the overall power and momentum you have.

While the Caliber 8 has front travel of 80 mm, whereas the Roscoe 7 boasts a 100 mm front travel. Check our guide to Trek Roscoe 8

Trek X Caliber 8 vs Giant Fathom 2

Both bikes boast a performance frame, which helps to keep the bike’s weight at a minimum—ideal for when you’re cycling at high speeds. The Fathom 2 sports a 120 mm front travel, and while the Caliber 8 has a rigid seat post, the Fathom 2 boasts a dropper seat post, which allows for quick saddle height adjustment.

Trek X Caliber 8 vs Trek X Caliber 7

The Caliber 7 has a heavier weight, making the difference between the two bikes 0.8 pounds, which can be significant if you want to cycle fast and up hills. Aside from this specification and a difference of 20 mm for the front travel, both bikes are very similar. For example, they both boast an Alpha Gold aluminum frame, hydraulic discs, and hardtail suspension. Check our guide to Trek Caliber 7

We hope you enjoyed this Trek X Caliber 8 mountain bike review . Overall, this mountain bike was made with excellent attention to detail and the RockShox fork and hydraulic disc brakes make this bike a great option for adventure rides.

These types of mountain bikes have a loose ball bearing system with a solo air spring and a tapered head tube. This cross country mountain bike has the perfect frame size along with smart wheel sizing and sealed bearing. The wheels are made with lightweight alloy rims and have max chain ring size. These mountain bikes are a great choice for participating in the Maxxis Ardent race. It is a fast mountain bike with an alloy axle and a kickstand mount as well.

What are your thoughts on the bike? Let us know your feedback in the comments.

About The Author

Daniel Shakibaie

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Trek Procaliber 8 review

Alloy hardtail complete with IsoSpeed

Colin Levitch / Immediate Media

Colin Levitch

IsoSpeed decoupler adds tangible rear end softness; stiff frame; compact rear end

IsoSpeed only effective when seated

Trek is adamant that the Procaliber is not a soft tail. There’s no rear suspension to speak of nor elastomers. Instead, Trek has adapted its IsoSpeed decoupler into the XC hardtail's frame.

• Softtail shootout: BMC Teamelite vs Trek Procaliber
• Best mountain bike: how to choose the right one for you
• Trek Procaliber 9.7 SL review

Previously, the IsoSpeed decoupler was reserved for the pricey 9-series carbon fiber models, however, a few months back Trek revealed it was trickling the bump-eating technology into the more reasonably priced alloy frames.

The Procaliber 8 is the highest spec alloy version of the frame and, without bottle cages or pedals, it tipped our scales at 11.63kg /25.63lbs — not super light, but not all that heavy either.

A not so hardtail

Replacing the normally fixed joint where the top tube meets the down tube, the IsoSpeed decoupler is essentially a pivot that allows the seat tube to flex independently of the rest of the frame. As Trek puts it: “increasing vertical compliance without compromising pedalling efficiency.”

As we’ve previously reported with the higher-end carbon Procaliber, and Trek’s road bikes for that matter, the decoupler definitely adds some tangible softness to the rear end. So how does it translate to the alloy frame?

Pretty damn well!

Aluminum manufacturing has come a very long way since the bruisers of old, and engineers can shape and tune the tubing almost to the same level as carbon.

Down near the bottom bracket the seat tube has a cutout resembling what you’d expect to see on an aero road bike. I honestly doubt there’s any wind cheating advantage here, instead this is where the tube is tuned to flex and soak up some of the trail noise.

With that, you only get the benefit of the decoupler while you're seated, unlike something like the BMC Teamelite which uses an elastomer in the seatstays to absorb bumps in any riding position.

• Softtail shootout: BMC Teamelite vs. Trek Procaliber

It’s still a hardtail when you head for a rock garden or rough section, it’s still going to ping off rocks same as any rigid frame will. The real value is the way the bike handles small bumps and general trail vibrations that would otherwise make their way up to the saddle.

My local trail network is pretty rough and rocky, and on a hardtail it can really take its toll on your body, especially your lower back. While it’s still rough aboard the Procaliber, after a few hours riding I felt noticeably less beaten and bruised than usual.

We’ve previously noted on higher end carbon Procaliber frames that when the power is down at a grinding low cadence the seat would noticeably bounce underneath you. The Procaliber 8 doesn’t suffer this to the same extent, and I was only able to detect the slightest movement when I was focused on finding it.

With the vertical compliance relying on flex in the seatpost rather than the seatstays, the rear feels stiff and snappy, and no energy is wasted with increases in power.

This, in combination with the relatively compact 435mm chainstays makes the rear wheel feel as though it’s directly beneath your derriere, and the bike corners like a heat-guided missile, especially on tight uphill bends.

Modern XC geometry

The Procaliber is based around Trek’s G2 geometry and custom fork offset, which for my 18.5-inch test ride came in the from of a 69.3-degree head angle, 72.5 seat angle, stumpy 9cm head tube and low 31.1cm bottom bracket — slightly longer and slacker then its predecessor the Superfly.

Combined with the 100mm fork and a 51mm offset, the big wheeled Procaliber 8 was nimble at low speeds when things got technical, while still offering a stable, confident platform to attack corners and berms at high speed.

Based around Boost hub spacing, there’s no lateral flex to be found in the wheels, or the frame for that matter. I’m also quite happy to see Trek including the tubeless rim strips for the Duster Elite hoops in the box, all you need is valves and sealant for a quick tubeless setup.

Speaking of tubeless, the Duster rims combine with the Bontrager XR2 rubber snapped into place with a track pump and a bit of elbow grease on the first try — easy peasy. With uniform square knobs throughout, the XR2s are a fast rolling XC tire, they’re marked at 2.2-inch, but actually measured 2.36-inch mounted on the rim.

With the small knobblies they roll along almost effortlessly but there is a definite trade off when it comes to braking and cornering traction. If you throw something with a bit more substantial tread on the front, the XR2 would make for a fantastic rear tire.

At the front, the RockShox Reba RL, complete with a cable actuated lockout remote, has quite a stiff spring rate at the top of the travel. For racing this is ideal to prevent any loss of power, but without race plates something a bit more supple is appreciated.

The drivetrain is a mix of Shimano SLX and Deore XT parts, with a 2x Race Face Next R crank at the front. The 36/26 front chainrings and 11-42 11-speed cassette provide oodles of range, though a 1x system would be a welcome upgrade.

• RaceFace Next R first ride
• Shimano SLX M7000 11-speed transmission review

We're happy to see Trek spec the Procaliber 8 with a 720mm bar and 80mm stem. Combined with the geometry it allows for an aggressive position while still providing plenty of leverage to muscle the bike around.

At the back, the carbon seatpost furthers the IsoSpeed decoupler's vibration damping work, and the Montrose Comp saddle seems to mesh well with my behind.

Final thoughts

Trek has done a fantastic job trickling the IsoSpeed decoupler down into the lower end alloy frames. When the bike first arrived I was a bit worried that its effect would be diminished due to the change in frame material, but it didn't take long for that to pass. This is not a case of me-too-ism, instead, Trek has worked to tune these lower end bikes to make the most out of this technology.

It's important to reiterate that this Procaliber 8 is still a hardtail, and while the decoupler does well to take the square edge off bumps, it's not a rear shock. It's also a moving part, and will have to be periodically serviced.

If you're looking to get into XC racing, or you're in the market for a lively and super efficient hardtail but don't want to fork out for a full carbon version, the Procaliber 8 is worth a look.

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Review – Trek Procaliber 8

Procaliber performance, entry-level price

Just over a year ago our test riders tossed a leg over the highly anticipated Trek Procaliber 9.9 SL, a bike built with all the best carbon parts Bontrager had to offer and a complete weight (with pedals) of just 20 pounds. The bike was a rocket ship, and if it had wings, it would likely blast right through the stratosphere. It was, and still is, a cross-country rider’s dream bike—and that was sort of its only downfall. To most, the high-performance machine was an out-of-reach price tag, unless you were a sponsored racer. Luckily, Trek is quite aware of this and offers its flagship cross-country hardtail with multiple build packages, bringing the cost down to a much more approachable price. The Procaliber 8 has an aluminum frame, drastically reducing its MSRP while still providing racers with top-notch performance. So, the final question remains: can this aluminum cross-country hardtail hold its own against a sea of eager race bikes? Let’s find out.

The Procaliber 8 is ideal for riders interested in cross-country riding who don’t want to go all in with a top-dollar carbon fiber machine. This bike is also well suited for kids looking to join their local high school mountain bike team due to its reasonable price. The Procaliber is a hardtail, so it’s not likely to be the choice of a rider who prefers gravity-fed technical terrain, but it could suit riders of all levels and ages who ride on dirt roads, racecourses and any local singletrack.

WHAT IS IT MADE FROM?

The Procaliber 8 has an aluminum frame with a hidden trick up its sleeve. What sets the Procaliber apart from any other hardtail is its IsoSpeed decoupler. Trek’s IsoSpeed decoupler was first designed for its road racing team, allowing the bikes to travel over rough cobblestone streets with relative ease and comfort. The technology was then transferred into the mountain bike line and trickled down to even the most entry-level Procaliber. Trek also designed the Procaliber with Boost hub spacing, internal dropper-post routing and an extended range of frame sizes, from 15.5 inches to 21.5 inches. Trek also uses its Smart Wheel Size system, which places 27.5-inch wheels on the 15.5-inch Procaliber frames, while 17.5-inch-and-up frames receive 29-inch wheels.

Trek, wanting to keep the Procaliber 8 at an affordable price, was limited as to the parts it could use, but the engineers managed to put together a build kit that spent money where it counts. Our test bike featured an XT rear derailleur, along with an SLX front derailleur and shifters. Trek then spec’d a Race Face Next R crankset with double rings, resulting in a super-low range. We’re talking about a small, 26-tooth front ring with a 42-tooth cassette out back. The bike has a RockShox Reba fork with a remote lockout and a cross-country-inspired cockpit with a 90-millimeter stem and 720-millimeter handlebars.

HOW DOES IT PERFORM?

Setting up: It takes little effort to get the Procaliber ready to hit the trails. We pumped up the air chamber in our RockShox Reba to the recommended pressure printed on the lower left fork leg, which put us right around 25-percent sag. We then adjusted our rebound accordingly. The IsoSpeed decoupler requires zero attention, making setup on this bike a breeze.

Moving out: The Procaliber screams cross-country with its long stem and narrow bars. Out on the trail, the bike handles well thanks to Trek’s G2 geometry. The idea behind G2 was to use a custom offset fork to provide precise handling at low speed without compromising high-speed stability. Where the Procaliber really shines is over chattery small bumps that would normally beat up a hardtail rider. The IsoSpeed decoupler is no gimmick and does an excellent job of damping trail vibrations.

Climbing: The Procaliber 8 is not a particularly lightweight hardtail; however, you’d be hard-pressed to find a bike much lighter within this price range. The Procaliber is no slouch when the trails point up and rewards riders with a smooth and fast feel. The super-low-range gearing was favored by our test riders, and while we believe 1x drivetrains are the way to go for almost every rider, many racers looking to purchase this bike will appreciate having double rings for steep climbs and sprint finishes.

Cornering: The Procaliber’s G2 geometry lends confidence to riders while cornering, allowing them to quickly dice their way around a racecourse or local trail. This is an agile cross-country bike that likes to dive into sharp turns and carry lots of speed out of them. We were quite shocked at just how well the fast-rolling 2.2-inch tires grabbed our loose Southern California soil.

Descending: It quickly became apparent that the Procaliber was made for speeding its way up climbs and traveling fast through flat sections. That doesn’t mean the Procaliber is not a capable descender, but riders will need to approach downhill trails with more caution. The IsoSpeed decoupler damps trail chatter well but should not be confused with a shock. This is a hardtail cross-country bike designed to be simplistic and fast over less technical terrain.

Braking: The Procaliber 8 comes spec’d with entry-level brakes that will bring a rider to a stop but require pre-planning and strong fingers. Most riders aboard this budget-minded hardtail will have no issue managing their speed on mellow trails, but more aggressive riders looking to challenge themselves on steep chutes may find the brakes a little under-gunned.

TRICKS, UPGRADES OR TIPS?

Right out the box the Procaliber 8 has a respectable build kit that will work great for amateur cross-country racers or riders. The bike is a little bit on the heavy side, and riders could save some weight by ditching the front derailleur and going to a 1x system. The 1x setup will also simplify the build and improve shifting performance. True racers looking for a competitive edge should save their pennies for the carbon version; however, the Procaliber 8 could be an excellent choice for a racer on a tight budget.

The Procaliber 8 could be made into a fun hardtail trailbike with the help of a few upgrades. First, a rider could install an internally routed dropper post, which would liven up the Procaliber’s descending capabilities. Depending on your terrain, a wider trail tire might allow you to dive harder into the corners; however, the OEM tires hooked up really well. Last, we would go to a tubeless setup to allow for lower tire pressures and better puncture resistance.

BUYING ADVICE

In a world filled with high-tech full-suspension bikes, it’s nice to go for a ride on a simplistic hardtail. Riders looking to get into mountain biking and who desire to tackle rough terrain will be more than pleased with a hardtail, especially the Procaliber, as it provides a smooth ride unlike any other aluminum hardtail we’ve ridden. At the Procaliber’s price point, we would be hard-pressed to recommend a better bike for a cross-country rider who doesn’t need a flashy top-dollar machine to have fun.

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Trek’s Newest E-Mountain Bike is Light, Fast, and Sporty

An adventurous pedal-assist bike, the E-Caliber has the heart of a cross-country racer.

The Takeaway: The Trek E-Caliber is a lightweight, XC-oriented electric mountain bike for riders who want a nimble and agile machine that excels on a wide range of trails.

• Trek claims the 34.8-pound E-caliber 9.9 XX1 AXS is the lightest full-suspension eMTB.
• 60mm carbon frame, 120mm fork, and aggressive geometry
• Fazua Evation pedal-assist motor can be removed for unassisted riding

Price: $11,999 Weight: 36 lb. (size Large)

A light and efficient 60mm carbon frame, cross country-oriented geometry, a 120mm fork, and...a Fazua Evation pedal assist motor?

Old Man Winter has been very uncooperative this month, leaving much of my trails buried deep beneath the snow . But as I write this, the sun is shining, snow is melting, and I’m optimistic that it won’t be long before I can hit the trails for some more substantial rides.

.css-1hhr1pq{text-align:center;font-size:1.1875rem;line-height:1.6;font-family:Charter,Charter-roboto,Charter-local,Georgia,Times,Serif;}.css-1hhr1pq em{font-style:italic;font-family:Charter,Charter-styleitalic-roboto,Charter-styleitalic-local,Georgia,Times,Serif;}.css-1hhr1pq strong{font-family:Charter,Charter-weightbold-roboto,Charter-weightbold-local,Georgia,Times,Serif;font-weight:bold;} 5 Things We Love About the Trek E-Caliber 9.9 XTR

Short Travel

The lightweight, single-pivot design allows just 60mm of travel.

Carbon Wheels

Bontrager Kovee XXX hoops are light, stiff, and very durable.

Removable Motor

The battery and drive unit can be taken out of the downtube.

Minimalist Controls

The buttons for the Fazua motor blend nicely into the handlebar.

Lightweight rear suspension offers great pedaling efficiency.

The E-Caliber was borne from Trek’s full-suspension XC racer, the Supercaliber . The Fazua Evation motor neatly integrated in the downtube gives riders three levels of pedal assist. Besides being very light (7.4 pounds on my scale), the battery and drive system are removable and can be replaced with a dummy battery that doubles as a storage compartment, leaving me with a 28-pound (for size Large) bike that should pedal like a non-electric bike.

Class 1 Fazua Evation Motor

The Fazua Evation motor is powered by a 250-Wh battery with a claimed range of 18 to 50 miles. As with all e-bikes, that depends heavily on what mode you use, how much you weigh, and how hilly the terrain is. The more power you demand, the quicker the battery drains.

That motor itself represents a departure for Trek, as we’re more accustomed to seeing bikes from the Wisconsin-based brand with Bosch’s stellar Performance Line CX motor. Ott attributed that move to the new Black Pepper Tune, “which we felt took a good bike and made it a great bike for us,” he said, because it refines power delivery over a broader cadence range. Ott also told me the new tune improved responsiveness, making the pedal assist engage sooner.

The system has three power modes with very Zen and the Art of Motorcycle Maintenance names. Breeze is the economy mode and gives riders a constant 100 watts of help. River provides progressive assistance where the motor’s software attempts to match the amount of assist with what you’re putting into the pedals, but only up to 210 watts. The full gas mode is called Rocket, which gives riders an extra 250 watts regardless of how much effort they put into the pedals. But because this is a Class 1 e-bike , additional power cuts out when speed tops 20 miles per hour regardless of mode.

Fazua plans to release an app in April that will give riders complete freedom to customize the power curve in all levels of assist.

The E-Caliber retains the IsoStrut single-pivot suspension design from the Supercaliber, giving the bike just 60mm of rear wheel travel and exceptionally low weight due to the lack of pivots and linkage. But things change on the front end to handle the extra speed and hard riding the motor adds to the equation. Front suspension goes up to 120mm, giving the bike a more adventurous feel like the Cannondale Scalpel SE and Specialized Epic EVO . Head angle is kicked out to 67.5 degrees, the result of bumping travel up by 20mm. That’s still aggressive by trail standards but within the realm of modern XC geometry like we see on the Scalpel, Specialized Epic , and BMC Twostroke 01 . Reach got longer than the Supercaliber’s, in this case by 15mm (440mm for a Large).

Those three changes represent the main geometry differences between the E-Caliber and its analog sibling. As with other bikes that get the longer/lower/slacker treatment, the idea was to add stability at high speed and make the bike handle better on rougher terrain.

Trek E-Caliber 9.9 XTR Details

Style: E-mountain bike Material: Carbon Wheel Size: 29er Fork: Fox SC34 Factory 120mm Shock: Trek IsoStrut 60mm Drivetrain: Shimano XTR Cranks: E*thirteen E*spec Race Carbon Chainring: 32t Cassette: Shimano XTR 10-51 Brakes: Shimano XTR M9120 4-piston Wheels: Bontrager Kovee XXX 30 Carbon Tires: 2.4-inch Bontrager XR3 Team Issue Saddle: Bontrager Verse Pro Seatpost: Bontrager XXX OCLV Carbon Handlebar: 750mm Bontrager Line Pro OCLV Carbon Stem: 70mm Bontrager Kovee Pro Tire Clearance: 29 x 2.4-inches

Where Does This Bike Fit In?

Mid-travel e-bikes have proven to be great options for a wide range of uses, not the least of which are shuttling enduro runs, ripping flow trails, and making any hard, mountainous trail more accessible to riders who have less than professional-level fitness. However, those bikes can quickly lose their appeal for riders who enjoy taking a more active role in piloting because the heavy frames, big tires, and longer travel have a way of letting you steamroll over obstacles. The E-Caliber is still a 36-pound bike, which, while light for an electric mountain bike, is hefty. I don’t expect it to behave exactly like my XC bike that weighs 30 percent less, but I’ll be looking very carefully to see if it holds onto the spirit of that style of riding. I’m cautiously optimistic that the combination of short travel, light weight, and aggressive geometry will make for a bike that opens up the joys of long trail adventures and ripping fast singletrack to a segment of riders that may not otherwise get to experience that thrill.

E-Caliber Family

The E-Caliber is available in five models priced from $6,499 for the E-Caliber 9.6 all the way to $12,499 for the range-topping, jaw-dropping, 34.8 pound E-Caliber 9.9 XX1 AXS. All models share the same full-carbon, 60mm frame with a 120mm fork. Interestingly, the top-tier 9.9 XTR and 9.9 XX1 AXS builds do not come with dropper posts. That’s disappointing, but it’s a move we often see on new XC bikes, where droppers are omitted for the sake of keeping the weight as low as possible. As ubiquitous as dropper posts are these days, it feels like an artificial way to claim a lower weight. If you’d like a dropper stock on your bike, look to any of the three lower priced options. You can also add a dropper to any of the higher priced models through Trek's Project One options.

The cheapest (still $6,499) E-Caliber, the 9.6, features a drivetrain that’s a mix of Shimano XT and Deore, with a 120mm RockShox Gold fork and Bontrager Kovee Comp wheels. For $7,999 the E-Caliber 9.8 gives you Bontrager Kovee Pro carbon wheels, a 120mm RockShox SID Select+ fork and the choice of either a SRAM GX or Shimano XT drivetrain. The next jump is a steep one: an extra $3,500 nets you the E-Caliber 9.9 XTR with a 120mm Fox Factory 34 SC fork and Bontrager Kovee XXX Carbon wheels. The top spot is reserved for riders willing to plunk down 12,499 bones for a dreamy bike, the E-Caliber 9.9 XX1 AXS, resplendent with SRAM’s wireless shifting and a 120mm RockShox Sid Ultimate fork.

Trek E-Caliber 9.9 XTR

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Is The Trek X-Caliber 8 Worth Buying? [Trek X-Caliber 8 Review]

Table of Contents

Trek X-Caliber 8

• Price: $1,599.99-$1,699.99
• Suspension: 100mm (front)(XS,80mm)
• Tires: 27.5 or 29x 2.35 in.
• Gears: 1 x 12.
• What we like: Lightweight, fast mountain bikes for singletrack, with the right components, and outstanding performance on both climbs and descents.
• What we don’t: The climb is slow.

Trek X-Caliber has always had a good reputation. When you want to get a mountain bike that can be off-road for a long time, or even ready to pack and travel, you may wish to consider the Trek X-Caliber 8.

It shares a lot of similarities with its sibling, the Trek X-Caliber 9, with some downgraded components, but when you need something other than a pure fast cross-country race bike, the X-Caliber 8 seems to be the best choice. It’s built with special attention to value and the parts that make the biggest difference in performance.

Below we break down the Trek X-Caliber 8’s descending and climbing performance, key features, components, and specs, along with other versions in the series for comparison.

For more mountain bikes in the same price range, check out our Best mountain bikes under $1,500 .

Related Reading: Is The Trek X-Caliber 7 Worth Buying? [Trek X-Caliber 7 Review]

Although the Trek X-Caliber 8 is one of the representatives of comfortable off-road, their descending performance has also been questioned.

Riders who live in mid-altitude areas will really appreciate the Trek X-Caliber 8, the fast-descent 27.5/29-inch tires. And a 100mm RockShox Judy SL Air fork.

Relatively flat single-track or double-gauge descents, including the occasional tree roots and rock blocks, can descend smoothly.

When it doesn’t mean it can withstand steep gravel descents, the suspension travel constantly bottoms out, which makes the testers uncomfortable.

And in muddy or soft sand, the 2.35-inch Bontrager Kovee loses grip quickly. The texture of the tire is soft, and it is a vacuum low-pressure tire, which has a certain effect on rolling resistance.

The steep head tube angle forced me to descend from an upright riding position, and it also didn’t have a dropper post, which required adjusting the seatpost height in the face of difficult descending terrain.

All of the above is relatively difficult mountain trails, and if you are more inclined towards moderate technical difficulty or easy trail descents, the Trek X-Caliber 8 is the most logical choice.

If you were worried about the climbing performance of the Trek X-Caliber 8, the X-Caliber 8 will surprise you with its climbing performance.

As a mountain bike with a competitive pedigree, Trek X-Caliber 8’s geometric design of the body, as well as details such as the grip of the tires, can ensure fast off-road and long-term off-road.

Outdoor adventures, not always in difficult terrain, and steep gravel hills, it is easy to show the power of the X-Caliber 8.

Thanks to it having a Shimano 1×12 drivetrain, the incomplete Shimano Deore M6100 drivetrain has some upgrades at the Rear derailleur. The Shimano XT M8100 is used to ensure smooth shifting during fast riding off-road.

RockShox Judy SL can also be manually locked when climbing, so you can climb to the top of the slope more easily.

As you know, the Trek X-Caliber 8 is very light, which makes it easier for long-distance off-road riders to climb.

Even though its climbs are so good, the only complaint about it is its drivetrain, which is set a bit low, which is a bit of a minus for the steeper climbs.

All in all, we still like the Trek X-Caliber 8’s ability to climb fast, which is hard to find in the same price range of mountain bikes.

General Terrain

Trek has designed their mid-range models with the commuter or recreational rider in mind.

So it’s important to be able to install the rear rack and fender mounts, both to meet the needs of your daily ride, and to bring more supplies when you want to backpack. Let you ride farther.

That’s why the Trek X-Caliber 8 is an all-rounder bike for off-road and commuting.

Long-distance off-roading requires the cooperation of different gears, and we will not feel that the gear range is not enough when climbing, and the 1×12 transmission system is already one of the standard attributes of mid-to-high-end bicycles.

The more upright riding position makes a huge difference on flatter singletrack terrain, allowing you to ride 20 miles all the way without getting too tired.

Perfect for small areas of gravel on the block, it’s easy to get addicted to the performance of components like a high-performance fork and fast-rolling tires.

Main Features

Frame (4.8/5).

The Trek X-Caliber 8 and 9 use the same Alpha Gold Aluminum frame. It’s not specifically subdivided into men’s and women’s frames, so it’s a unisex frame.

Alpha Gold Aluminum provides riders with more precise, confident handling and has been approved by quite a few riders.

Although the frame of the Trek X-Caliber 8 looks very flimsy, it is actually made of alloy material that is good enough for riders to ride for more than 10 years.

Clean interior wiring, and simple gray or white paint, minimalist style.

In addition, it is the weight of its frame. The heavy frame often makes your climbing more difficult. The X-Caliber 8 with racing genes is not only on the frame, which occupies most of the weight of the body. Do enough optimization.

There are other components that are lightweight directional stacks.

The versatility of the frame is also a nice touch, with two water bottle holders for long trail rides.

It can also be transformed into a commuter bicycle, a rear bracket that is easy to install, and a tripod, so that your car can accompany you more.

The steep header Angle is suitable for steep climbing, and it is maintained at a low speed when climbing, so the flexible handling is also worth considering.

So its conical head tube provides more precise and confident control for the ride, and the shorter rear and lower fork also enhances the maneuverability.

Of course, if you’re worried about whether a long ride can get tired, then a 73.8-degree seat tube Angle gives you a comfortable ride.

This also has the disadvantage that it is not suitable for very steep downhill road rides.In a moderate downhill road, a very comfortable transition to a flat single track or bike path.

Thanks to its frame and Trek X-Caliber 9, we can give it some upgrades when the budget is more adequate to make it more off-road.

Up to seven frame size options, which also allow riders of different heights to find the right size, the XS and S frames have 27.5-inch tires installed, which are more flexible. The M and above frames, with 29-inch tires, are suitable for fast off-road racing.

Components and Specifications

Shimano deore 1x12 drivetrain (4.7/5).

The transmission system has not shrunk, using the more mature Shimano Deore 1X12 transmission system.

The gear range is adequate, and such a drivetrain is adequate for use in non-competition models. The popular 1X12 drivetrain is also available on many mountain bikes for under $2000.

Therefore, in the components that need to be upgraded, we have not considered doing some upgrades.

Trek in the chain easy to noises after the fork parts, also do the protection device, detailed install protective device in the position of not easy to detect. This does not affect beautiful, can also be a quiet ride in the gravel path.

Shimano MT200 hydraulic disc Brake（4.5/5）

Long-term off-roading requires a more sensitive braking system.

The Shimano MT200 brakes on the Trek X-Caliber 8 are relatively low-end products in Shimano hydraulic brakes.

Of course, considering the price of Trek X-Caliber 8, we can understand that this brake system is installed on it.

The front rotor has been enhanced with a 180mm rotor, so it can withstand the braking test of long downhill roads.

Of course, you want to use it better in more intense mountains, and the Shimano MT200 will be insufficient.

Of course, the riding performance of the Trek X-Caliber 8 is far from reaching the shortcomings of the Shimano MT200. So this is a more appropriate component in the X-Caliber 8, not an excellent, excellent accessory.

RockShox Judy SL Fork（4.5/5）

With the exception of the smallest XS-sized Trek X-Caliber 8, which has 80mm of travel, the other frames use a 100mm RockShox Judy SL Fork.

As a rider who likes to ride in difficult mountains, I don’t particularly like mountain bikes with only 100mm travel forks.

Of course, when we tested it, we were also surprised by the outstanding performance of the RockShox Judy SL.

The air suspension can well absorb the impact of small shocks on the bicycle, and in the middle of the shock absorption, it can also provide more cushioning without violent rebound, which affects the handling.

The shock absorption at the rear distance from the bottom can also provide more shock absorption. I even think this is comparable to a 120mm spring fork.

Even if 100mm isn’t a big deal, the Trek X-Caliber 8 can support forks up to 120mm of travel.

Maxxis Ardent Race Tires

Vacuum tires are also one of the frequently upgraded components of many high-end mountain bikes due to their light weight, low tire pressure, and puncture resistance.

The Maxxis Ardent Race tubeless tires on the Trek X-Caliber 8 are also high-quality tires for off-road use.

It is light in weight, suitable for climbing, and can provide strong traction. The pattern of the tire also has a certain self-cleaning function. When riding on a muddy road, it is easy to get rid of the mud stuck to the tire.

The 2.35″ inch width is suitable for fast off-road riding, allowing you to ride faster with less power.

Trek X-Caliber 8 Specs

• Can I run 27.5+ wheels & tires?

Yes! X-Caliber features mounts for a rear rack and 20mm chainstay-mount kickstand.

• What is the max chain ring size?

Comparison Table

Competition, trek marlin 8 vs trek x-caliber 8.

In fact, in my opinion, the accessories of these two mountain bikes are very similar.

The Marlin 8, which also belongs to Trek, is also a mountain bike with racing blood.

Because of its lower price, it is also sought after by some riders who love racing mountain bikes.

In terms of frame geometry, there is not much difference in the angle, but the rear chainstays of the Marlin 8 are longer, reaching 438mm, which is suitable for riding on relatively flat off-road terrain. Overall handling will be slightly worse than the Trek X-Caliber 8.

With the SRAM SX Eagle, the 1×12 transmission system is more suitable for racing use, so the Marlin 8 transmission system is stronger and lighter.

In terms of riding comfort, I prefer the comfort of Trek X-Caliber 8, which is suitable for long-distance off-road cycling.

The Trek Marlin 8 is a mountain bike that can compete in short-distance cross-country races, and it has a beautiful pink color scheme, and more female riders will choose it.

Trek X-Caliber 8 vs Giant Fathom 2

The cost-effective Giant Fathom 2 has a very prominent feature, that is, it uses a Giant Crest 34 RCL front fork with 130mm travel.

For more aggressive off-roading, there’s a $30 price difference.

Compared to the Trek X-Caliber 8, which can only choose 27.5 or 29-inch tires through the frame, the Fathom 2 gives users more options. It is available in two wheel sizes, 27.5 x 2.6″ or 29×2.50″.

And the Giant Fathom 2 pays more attention to balance, and the looser 66-degree head tube angle enhances confidence and control on technical descents.

It is an efficient off-road machine that can climb fast and descend fast.

The wide tires also give it a performance comparable to mountain bikes in the $2,000 range.

Even so, I feel that the Giant Fathom 2 uses a Shimano Deore 1×10 drivetrain, which is a bit under geared compared to the Trek X-Caliber 8’s Shimano Deore 1×12.

In general, the Trek X-Caliber 8 is suitable for hills and mountains with little rolling, while the Fathom 2 is suitable for the middle or eastern woodland off-road.

CANNONDALE TRAIL SE 3 vs Trek X-Caliber 8

In our previous reviews, the CANNONDALE TRAIL series, we have always mentioned that the mountain bike components of this series or the terrain suitable for riding are relatively balanced.

So CANNONDALE TRAIL SE 3 is the most powerful competitor of Trek X-Caliber 8, what are the same or differences between them.

From the frame geometry comparison, CANNONDALE TRAIL SE 3 and Giant Fathom share some similarities. The head tube angle is not as steep as the X-Caliber 8.

In addition, the CANNONDALE TRAIL SE 3 is equipped with a 120mm RockShox Judy Silver TK, which has 20mm more travel, although it is more expensive, it can be suitable for more aggressive off-road or woodland riding.

The CANNONDALE TRAIL SE 3 also comes with a TranzX Dropper with 120mm of travel (100mm for the S frame), something the Trek X-Caliber 8 doesn’t have. So you can rush down the ramp of the gravel trail more smoothly.

Of course, the Shimano Deore 1×11-speed transmission system used in CANNONDALE TRAIL SE 3, a slight compromise on this component is also acceptable.

Considering the price/performance ratio alone, the value of CANNONDALE TRAIL SE 3 will be higher. Finally, we found that the Trek X-Caliber 8 has better climbing performance after riding comparison, which is a weaker terrain than the CANNONDALE TRAIL SE 3.

SANTA CRUZ Chameleon vs Trek X-Caliber 8

At almost twice the price of the Trek X-Caliber 8, the SANTA CRUZ Chameleon is for the trail rider on a bigger budget. It has more off-road handling and climbing ability than the Trek X-Caliber 8.

Whether it’s handling flexibility or the pursuit of fun off-road travel, the SANTA CRUZ Chameleon seems to be a very good choice.

The SANTA CRUZ Chameleon is equipped with a FOX Rhythm 34 with 130mm of travel, which is more efficient in shock absorption, and can also adjust the appropriate front travel according to its own weight and the required riding terrain.

The efficient and robust SRAM NX Eagle 1×12-speed drivetrain has always been a component many riders wish to upgrade to, and the SANTA CRUZ Chameleon comes with it.

In addition, the high-quality SRAM Guide T braking system, 4-piston caliper, sufficient clamping force and front and rear wear-resistant 180mm rotors can ensure that you stop precisely on the fast off-road road.

Is it just that? NO

Its biggest feature is its front and rear tires of different sizes, 29-inch front wheels and 27.5-inch rear wheels, which can not only ensure the flexibility of riding, but also achieve fast off-road ability.

Such a performance monster, and one of our ten-minute favorite models.

Final Evaluation (4.6/5)

The Trek X-Caliber 8 is a stripped-down version of the X-Caliber 9, but retains most of the same components. And in the same price mountain bike, its climbing performance and fast off-road ability are worthy of recognition.

Of course the Trek X-Caliber 8 is a great mountain bike for trail or rough trail riding. It also has a relatively high cost performance, so it is a very worthwhile mountain bike to buy.

We ended up giving the Trek X-Caliber 8 a 4.6.

Learn more: Is Trek X-Caliber 9 Worth Buying? [Trek X-Caliber 9]

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Trek X-Caliber 8

• AUS $ NZD $ USD $ CAD $ GBP £ EUR €

Size / XS, SM, MD, MD/LG, LG, XL, XXL

At a glance

Where to buy.

Specifications

• Frame Alpha Gold Aluminium, tapered head tube, internal derailleur and dropper post routing, rack and kickstand mount, Boost141, 5 mm QR
• Fork Size: XS, RockShox Judy SL, Solo Air spring, TurnKey lockout, tapered steerer, 42 mm offset, Boost110, 15 mm Maxle Lite, 80 mm travel; Size: S, RockShox Judy SL, Solo Air spring, TurnKey lockout, tapered steerer, Boost110, 15 mm Maxle Lite, 100 mm travel; Size: M, M/L, L, XL, XXL, RockShox Judy SL, Solo Air spring, TurnKey lockout, tapered steerer, Boost110, 15 mm Maxle Stealth, 100 mm travel
• Hubs Bontrager alloy, sealed bearing, 6-bolt, Shimano MicroSpline freehub, Boost141, 5 mm QR
• Wheels Bontrager Kovee, double-wall, Tubeless Ready, 28-hole, 23 mm width, Presta valve
• Wheel Size 29" 27.5"
• Tires Size: XS, S, Maxxis Ardent Race, tubeless, EXO casing, folding bead, 60 tpi, 27.5x2.35""; Size: M, M/L, L, XL, XXL, Maxxis Ardent Race, tubeless, EXO casing, folding bead, 60 tpi, 29x2.35"
• Chain Shimano Deore M6100, 12-speed
• Crank Size: XS, S, M, Shimano MT511, 30T steel ring, 52 mm chainline, 170 mm length; Size: M/L, L, XL, XXL, Shimano MT511, 30T steel ring, 52 mm chainline, 175 mm length
• Bottom Bracket Shimano SM-BB52, 73 mm, threaded external bearing
• Rear Derailleur Shimano XT M8100, long cage
• Shifters Shimano Deore M6100, 12-speed
• Brakeset Shimano MT200 hydraulic disc
• Handlebar Size: XS, Bontrager alloy, 31.8 mm, 5 mm rise, 690 mm width; Size: S, M, Bontrager alloy, 31.8 mm, 5 mm rise, 720 mm width; Size: M/L, L, XL, XXL, Bontrager alloy, 31.8 mm, 15 mm rise, 750 mm width
• Saddle Bontrager Arvada, steel rails, 138 mm width
• Seatpost Size: XS, S, Bontrager alloy, 31.6 mm, 12 mm offset, 330 mm length; Size: M, Bontrager alloy, 31.6 mm, 12 mm offset, 360 mm length; Size: M/L, L, XL, XXL, Bontrager alloy, 31.6 mm, 12 mm offset, 400 mm length
• Stem Size: XS, S, Bontrager Elite, 31.8 mm, Blendr-compatible, 7-degree, 60 mm length; Size: M, M/L, Bontrager Elite, 31.8 mm, Blendr-compatible, 7-degree, 70 mm length; Size: L, Bontrager Elite, 31.8 mm, Blendr-compatible, 7-degree, 80 mm length; Size: XL, XXL, Bontrager Elite, 31.8 mm, Blendr-compatible, 7-degree, 90 mm length
• Grips Bontrager XR Trail Comp, nylon lock-on

Q: Where to buy a 2023 Trek X-Caliber 8?

The 2023 Trek X-Caliber 8 may be purchased directly from Trek .

Q: What size wheels does the 2023 Trek X-Caliber 8 have?

The 2023 Trek X-Caliber 8 has 29" and 27.5" wheels.

Q: What size 2023 Trek X-Caliber 8 should I get?

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The standards on the Trek Procaliber 2023

• Frame weight: 1.4 kg (carbon)
• Bottom bracket: Pressfit
• Wheel size: 29 inches
• Rear wheel installation dimensions: 12×148
• Seatpost: 31.6mm
• Cable routing: through the down tube with internal routing
• Bottle holder: space for two bottles
• Special feature: Isospeed damping on the rear triangle
• Derailleur hanger: UDH (SRAM Eagle Transmission compatible)

The Procaliber’s competitors in starting block A

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Conclusion on the Trek Procaliber 9.8

About the author.

... has spent more than 100,000 kilometers in the saddle of over 1000 different mountain bikes. The essence of many hours on the trail: Mountain bikes are awesome when they match your personal preferences! With this realization, he founded bike-test.com to assist cyclists in finding their very own dream bike.

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