trek madone 3.1 geometry

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Trek Madone 3.1 Road Bike

World-class carbon performance starts here. For the discriminating sport-level rider who wants to squeeze every ounce of performance out of his/her budget.

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Carbon fiber and rear cassette were my main reason of getting rid of my Focus bike. The difference was amazing, I find the ride way more comfortable and since I mainly do hills, going from a 26 to a 30 rear cassette was like day and night and the Trek is almost 3 lbs. lighter. Makes climbing ALMOST a joy.

Man, those Bontrager wheels are the worst set of rims of my previous two bikes. Like riding with the brakes on. Put on some Forte's off my old bike and made a big difference. The seat isn't really a problem in fact it's no different than my other ones. Front shifter is OK the back 105 is better and the brakes seem OK.

After upgrading the wheel set the bike is something I look forward to ride for many miles. I like it!

A very light bike that handles well on all roads. Gearing is quite good too. A strong bike that gives you plenty of confidence. It looks well and has a very nice hard finish that stands up well to all kinds of road wear.

I find the saddle a real pain over long distances (50km+), I've decided to change it for something a bit easier on the butt!! The wheels are heavy and a bit of a 'let down' in comparison to the rest of the components and also the brakes could do with an upgrade.

The bike is good value for money and handles very well. It's a pity that they did not go 'the extra mile' regarding the wheels, I would recommend this bike over some of its rivals, but I feel that there is room for improvement! Wingman

Great climber, stiff bottom bracket, very comfortable ride. Did I mention it's a great climber? Wow

None so far

This is for the 2013 model. My last bike was Cannnondale CAAD10, which was amazing ride as well, but unfortunately ended up being too stiff for anything past 40-50 miles. So in comes the Madone, and I am very, very happy with the decision. The geometry places me in a more upright position, but still allows me to be aero on the drops. The three places it excels at are on hilly descents, climbs and long rides. I was really impressed with the power transfer when going up several steep hills around here, and equally impressed on the way down. The ride is very composed, if the makes any sense, and allows you to just relax and ride. Just fy--- I got rid of the stock seatpost and handlebars, and also switched out the Bontrager wheels to my existing Shimano RS80 wheelset. That made a huge difference, and the bike potential really came out.

Similar Products Used:

Bikes I've owned--- Giant TCR Composite, Cannondale Carbon Synapse, Cannondale CAAD10

The quality and the comfort of frame is very good The price is affordable

the front derailleur is Tiagra istead of 105

I wanted a bike that can be ridden year round over many kilometers and I now Got it!

For an entry level Carbon Road Bike the 3.1 is great value for money It's light and feels realy strong with a very smooth ride the 2012 model looks fantastic

None realy i'd recomend this bike to any one starting out road riding The same components for the handlebars to rear wheels would be good but they must mix and match to keep the price down

This bike is a pleasure to ride overall i could'nt be happier it seams perfect for the distance i cover 50 to 100 ks rides ( by the way i cant find a problem with the saddle it works well in my part of the world )

Light and tossable, handles bumpy roads much better than a metal frame

Saddle is hard and Wheels seem heavy when climbing

I got back into riding after about 11 years. While my 2000 model year Trek 2000 was a nice bike, I always felt it was too big for me (58cm frame) so when I found a new 2010 Madone 3.1 (56cm frame) on sale for under $1500 at my LBS in Oct 2012, I jumped on it. I could immediately feel the difference with how well the Madone cushions the bumps. and how much lighter it felt than the 2000 (even though the weight difference probably isn't very much). I'm finding the Madone to be great for the New Hampshire hills. I only got in about 250 road miles on it before the cold and snow came, but I'm very happy with the bike in general. so far. I upgraded the saddle to a Fi'zi:k Aliante after the first 100 miles or so because the stock saddle was a brick. The wheels are cheap and heavy and those are the only other planned upgrades. I would buy this bike again.

Very comfortable ride, I did a lot of research before purchasing my new bike and the 3.1 ticked all the boxes, the write up suggested a bike that could be ridden all day long and after my first journey out of 50 miles it didn't dissapoint. Very smooth stable and comfortable. The seat is hard but must suit my bum as I had no problems with it

Great bike buy one

Looks, weight, handling, climbing, brakes.

I'm no pro, I'm a born again cyclist (in my late 40s now) but I did a ton of research before settling for the Trek 3.1. I simply cannot fault it other than a pretty hard seat, which a good pair of cycling shorts will negate. Very smooth ride, hugely quick acceleration, admiring looks wherever I go on it and very light (I weighed it on our digital scales including pedals and water bottle holder it's under 8.5kg). Newer models can't really improve much so I went for a 2011 unused model and saved £400 ($650) what a bargain!

Ton of bike for $$$. Super comfy drivetrain. Great climber. Looks great. Easy to ride. Feels stable at speed.

Stock seat is a brick. Paint seems thin and scratches easier than most. 105 components can be noisy.

I own an older Cannondale aluminum and a Trek 5200 carbon bike, so that's what I have to compare them too. After riding the 3.1, I don't think you can do much better for $2,000. The frame is super comfy. The carbon frame absorbs bad roads wonderfully. Felt like a more expensive bike. Super stable going 40mph downhill. The compact gearing and 11/28 made huge hills easy work. My own complaints: I'm used to Shimano Ultegra, so the downgrade to 105 gear was noticeable. Nothing wrong with 105s, but they feel industrial compared to silkier, smoother more expensive components. Biggest complaint: the seat is awful! Every reviewer agrees that you will want your own seat! I'm giving a 4 instead of a 5 because of the seat and I prefer better than 105 components. If you are looking for your first carbon bike, or first bike, then get this one. Other than the easily replacable seat, you won't find a better deal or better bike. Just buy it! Even if you hate cycling later, you could sell this bike and get most of your $$$ back.

Just changed the stock Bontrager tires on my Trek Madone 3.1 to Continental Gatorskins at 550 miles. Gatorskins are much faster rolling and better grip in cornering. Plus, the Gatorskins are thicker with more belts for added flat avoidance. Although I didn't have any flats on the original tires during the 550 miles I rode the R1 Bontrager tires.

As previously stated the stock seat is very hard and uncomfortable....I changed it as well.

Great bike for the price. Most carbon bikes are much more money and the Shimano components work well. Shifts smoothly and brakes strong. Light and fast.

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• Rider Notes

2011 Trek Madone 3.1

A carbon frame aero bike with upper mid-range components and rim brakes.

For This Bike

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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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I've made it here to Liege to chase a little bike race around France, but before I begin Trek was kind enough to invite me to their new Madone launch. And I'm glad they did. Besides having a lot of fun, I've had the opportunity to meet many of the people behind Trek and the innovative products they produce. Back in

Read Review

Jun 2012 · Caley Fretz

We give our first impressions of the all-new Trek Madone and an expanded Domane line

Aug 2010 · R BA

No, not the new 6 Series SSL, but still a (2009) Tour winner

Mar 2010 · Lennard Zinn

Two-time world pursuit champion Taylor Phinney is Trek-Livestrong’s marquee rider.

Jan 2010 · James Huang

A racier and brawnier feel for the new Madone

Jan 2009 · Mat Brett

Lightweight, stiff and comfortable with superb ride quality

Last updated June 29 Not listed for 2,495 days

The Trek Madone 3.1 is a road/triathlon bike with a carbon OCLV / E2 / 300 Series OCLV frame. The frame comes in colors like White  Shell,   Blue  Ink  /  Crystal  Pearl and   Washed  Denim  /  Blue  Smoke .

Originally released in 2011, there are 5 versions of this bike. Due to the frame materials and other factors, we estimate that this bike weighs around 20 pounds. The Madone 3.1 is fully rigid.

The Madone 3.1 comes with Shimano 105 components, including a Bontrager Race Lite stem, an integrated, tapered, threadless Top Bottom headset and Shimano SRAM Apex DoubleTap shifters.

The Madone 3.1 has 10 speeds and has Shimano Tiagra rear cogs and a Shimano SRAM Apex derailleur.

It comes with Bontrager R1 tires (622mm x 23mm) and aluminum Bontrager rims.

When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.

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Cycling Plus

Trek Madone 3.1 review

Versatile and good value package

Russell Burton

The Madone is the century’s most successful pro frameset, helping Lance Armstrong to most of his seven Tour wins . While this has made it a huge seller, the lower range Madones never got our pulses racing in the same way as Trek’s 6-Series OCLV frame.

This year’s range changes all that, though. The 3.1 is brilliant, its new OCLV frame offering a beautifully smooth ride. It shares the same frame as the 3.5, a runner-up in our Bike of the Year test.

Madones come in three different geometry options: the H1 for pro riders, the H2 with lengthened head tube and shorter top tube, and the more relaxed H3. We opted for the H2.

• Highs: The 3.1 is a joy to ride: handling, gearing and comfort are all perfectly pitched
• Lows: The wheels are basic and will need upgrading to improve the 3.1
• Buy if: You want a bike that can be ridden year round over many miles, with great handling

As well as having mudguard eyelets, the 3.1’s fork features Trek’s neat built-in ANT compatible Speedtrap sensor, which can transmit to any compatible device.

For what is nominally an endurance model, the Madone 3.1 handles superbly. Get onto the drops on a descent and the 3.1 is exactly where you want it to be, even when the road gets seriously twisty. A full-on race bike might have the edge but the Madone 3.1 will be more comfortable for longer.

What the Trek gives you most, though, is pure confidence – extreme lean angles and fast direction changes are easy, helped by the Bontrager R1 Plus tyres.

Trek use Shimano 105 shifters and rear mech and a Tiagra front mech, with SRAM’s S350 chainset proving a great companion. The 50/34 rings and 12-30 cassette give the 3.1 a climbing ability nearly the equal of the Giant Defy.

Bontrager supply the rest of the kit. The Affinity saddle is well shaped, comfortable and reasonably svelte, its clamp offering ample adjustability. The Bontrager Race bar has a traditional round shape which is comfortable to hold, and its compact drop lets you get down low without overstretching.

The wheels are weightier than we’d like, but that’s par for the course at £1,500.

Overall, the 3.1 is ideal for challenge or sportive rides, its mudguard potential giving it year-round versatility too. Add handling that’s perfectly pitched and a smooth, comfortable ride and this is a hard bike to beat. Eventually we’d upgrade the wheels, but as it stands, it’s one of the best £1,500 bikes around.

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Is Trek Madone 3.1 WSD A Good Bike? [Trek Madone 3.1 WSD Review]

Table of Contents

Trek Madone 3.1 WSD

• Price:  $1980
• Category:  Aero Bikes
• Frame:  Ultra-light 300 Series Alpha Aluminum
• Gear:  2×10
• Tires:  700x23c

What we like  about it : The perfect fit of speed and comfort creates a quality body for the ultimate riding experience.

What we don’t like about it:  Overly expensive prices.

Rating: (4.6/5)

Introduction

“The Trek Madone 3.1 WSD Compact is a goat with unlimited energy” is what photographer Tom said about it. And if you are a road bike follower, then the Trek Madone 3.1 WSD Compact may meet your expectations.

The OCLV carbon frame of the 300 series is a unique part of the Trek, with a lighter body than its previous version (the Trek Madone 2.1 H2 Compact). You can use the Trek Madone 3.1 WSD for some small road competition, while the Shimano 105 STI and 10-speed drivetrain still deliver satisfying traction.

The 10-speed drivetrain still delivers satisfying traction, and you can make butter-smooth shifts with just a gentle slide of the shimmy. Further, the 700x23c tires stay small while allowing for fast rotation on gravel roads.

We have two months of measurement experience with the Trek Madone 3.1 WSD. So, to make the results more informative for you, we will elaborate on the performance, key features, components, and specifications of the Trek Madone 3.1 WSD while riding, as well as other versions of the series. If you want to know more about the versions, please refer to our review.

General Riding

I have to admit that the carbon fiber of the 300 series has more damping and stabilization than the previous version. The Trek Madone 3.1 WSD is also equipped with Bontrager R1 Hard-Case Lite tires, which have a unique anti-puncture system to ensure that the rider can go on gravel roads.

The flat stretch of road leading to Silver Star Park became the first hurdle in our test. In fact, the Trek Madone 3.1 WSD was perfect, starting with its unparalleled comfort, the 300 series OCLV carbon frame kept the body extremely light. And I was able to easily lift the Trek Madone 3.1 WSD even over some impassable roadblocks.

The Bontrager Comp VR-S handlebars are built specifically for the road, with a shallow bend and reach optimized for riders who don’t like an aggressive stance, allowing me to maintain a relatively stable and comfortable seating position on some climbing sections.

At the same time, the Shimano 105 derailleur is absolutely lightweight, measured at 235g, which doesn’t bother the Trek Madone 3.1 WSD. So I can do some difficult riding stunts on the road.

Five kilometers is not a short ride, but I rode slowly because I enjoyed my time on the Trek Madone 3.1 WSD. The most enjoyable part of the day, marching slowly towards home in the gentle cool spring breeze.

Gravel Riding

The Trek Madone 3.1 WSD not only performs satisfactorily on flat roads but is also commendable on gravel roads. As a road bike, in addition to the OCLV carbon frame, it is also equipped with Trek’s custom carbon fiber fork specifically designed for the road, which provides a clean look while meeting the aerodynamic design.

The collision between the gravel and the body did not deter me as I made my wild adventure moves on the bumpy flowing trails, and the greater vibration would fade as the fork moved up and down.

Of course, the Trek Madone 3.1 WSD brings more surprises than that.

The Bontrager R1 Hard-Case Lite is also the “hidden important player”. Because the R1 tire is the perfect replacement tire for road bikes or city commuters, achieving the perfect combination of value and performance.

As you know, monthly tire repair costs have always been a headache for me. However, with the Bontrager R1 Hard-Case Lite, there’s no need to worry about that. It features a 60TPI case and Hard-Case Lite puncture protection for reduced weight and increased durability.

I enjoyed the light bumps and jolts and it gave me the courage and confidence to keep going. It’s worth mentioning that during my final sprint, I came across a monolith that came into view almost instantly, and I immediately tightened the valve cable and applied the emergency brake.

The alloy dual-pivot is satisfying and I was able to stop it perfectly without applying too much force. It achieves a lightweight, compact and durable braking system. Also, the dual-pivot caliper brakes have made great strides in reducing tolerances and offsets as well as durability.

Main Features

Although it is a 7-year-old bike, the Trek Madone 3.1 is a stunning presence in terms of stylish construction even now. Black, white and blue are mixed into the body, and the white seat cushion with black seat post gives a smooth and neat impression.

The carbon fiber construction of the 300 Series makes it light enough to be easily lifted, while its damping capabilities allow the rider to take on those tricky bumps.

Of course, you can also install a water bottle device at the down tube as well as the rear tube to solve the problem of insufficient water supply in your daily travel.

Even when it’s raining, the Trek Madone 3.1 is ready for anything. If you hate having debris and mud invade your clothes on wet roads, then fenders are also essential.

Components and Specifications

Shimano 105 sti, 10-speed drivetrain.

It’s hard to imagine that seven years ago, Shimano had such a well-developed drivetrain setup. And through Shimano’s unique artistic aesthetic, it is smooth, natural, and light in its construction, giving it an artistic aesthetic. Shimano 105 STI, 10-speed has a special kit with internal gear cables that have been lubricated with silicon to improve its own extended performance.

The ergonomic shape makes them compatible with all Shimano 10-speed components, and if they get damaged in the process, you can upgrade or find replacements at the Shimano brand store. And I wouldn’t worry too much about its service life.

Trek carbon road Front Fork

In addition to the front fork, the Trek Madone 3.1 WSD doesn’t disappoint road riders with its unique carbon construction. The fork has SpeedTrap sensor integration so you can react quickly based on distance and speed without the complicated add-on mounts required by other sensors.

With lighter weight components and better shock absorption, it provides the ultimate shock absorption experience, even on a moving trail of Yellowstone clay. It can return to the starting position faster even under continuous violent ramming.

At the same time, it has a rougher tire surface when encountering steep roads, and even on a road full of gravel, I can feel that there is no more extreme vibration that comes when the body hits the ground.

Alloy dual-pivot Brake

Alloy dual-pivot is the unique design of Trek Madone 3.1, with a lightweight, compact and durable braking system. Also, the dual-pivot caliper brake has made great strides in reducing tolerances and deflection as well as durability. Even slippery mossy roads can be braked peacefully and calmly.

At the same time, in terms of service life, we have also conducted sufficient testing, and the results are also satisfactory. My actual experience experience is that after six months of riding with the alloy dual pivot, it still has solid construction and high performance.

Bontrager R1 Hard-Case Lite Tires

The Bontrager R1 Hard-Case Lite is a regular on Trek bikes, with high performance, high value, and longevity enough to take its place in the bike market. As a road-specific tire, its wear resistance speaks for itself.

The puncture-resistant tire setup reduces weight while increasing the durability of the Bontrager R1 Hard-Case Lite itself. The low rolling resistance and excellent cornering grip allow you to maintain the ultimate balance even on fast-moving winding trails.

Other Versions of Trek Madone 3.1

In order to give you more possibilities to choose from, we tested other models of the Trek Madone 3.1 series for a certain period of time, including the Trek Madone 2.1 H2 Compact, in an objective and fair manner.

First of all, the Trek Madone 2.1 doesn’t follow the market trend of choosing a more affordable aluminum alloy, so it may not be as good in terms of weight and shock absorption.

The physiological structure also encompasses female riders, making it stand out from the rest of the bike competition, which of course means you’ll have to spend more dollars.

What do we like about it?

1. The slim Bontrager R1 offers you the ultimate in swift riding.

2. 300 Series carbon fiber construction keeps the body light.

3. The Trek carbon road fork is designed for road use to provide the ultimate shock absorption.

4. Alloy dual-pivot is more compact, durable, and provides you with emergency braking.

5. Different body frames are made specifically for men and women with different physiological structures.

What we don’t like about it?

1. Rarer color options.

2. Relatively expensive price.

3. Overly slim tire size.

Accessories

Comparison Table

Trek madone 3.1 vs scott foil 20.

As the king of road bikes, the Scott Foil 20 is always the best in competition, and a big part of this is reflected in its unparalleled speed (66km/h after our review). 

At the same time, the Scott Foil 20 also chooses the more advanced Ultegra in the choice of the groupset, which has a faster, more agile, and quicker shifting experience in the actual riding experience. But the only regret is that the 2x system may be too complicated for riding.

In the next upgrade, the more advanced 1x may be a good choice, and I don’t mind spending more money on it.

Trek Madone 3.1 vs Orbea ORCA AERO M30TEAM-D

Carbon frame aero bikes with mid- to high-grade components and hydraulic disc brakes.

The Orbea ORCA AERO M30TEAM-D still has a good riding experience. The first is its speed, 63km/h can still add competitiveness to your road race. The adjustable geometry is also a highlight, as you can adjust the seat tube and the distance from the BB center of gravity to the ground according to your height.

This is an extremely important setting for comfort. Typical Orbea components will allow you to come out on top in various bike races. The Orbea ORCA AERO M30TEAM-D may also be an option for you if you have the money to spend.

Learn more : Is Orbea AVANT H60 A Good Choice? -[Orbea AVANT H60 Review]

Madone 3.1 WSD Compact vs Fuji Transonic 2.1 Rim

The birth of the Fuji Transonic 2.1 Rim can be traced back to the 19th century. By the 1920s, it was the largest bicycle brand in Japan. Through generations of heritage and improvements, the Fuji Transonic 2.1 Rim has become a unique presence on the road.

The carbon construction allows you to travel steadily even on gravel roads. The bodywork is clean and simple, with no exposed cables and a wide range of convergence, making it look fresher and smoother.

Additionally, the 700x28c tires have a more stable body condition than the Trek Madone 3.1. The wheels keep rolling while keeping the body steadily moving forward, and the steering operation is quick and sensitive even in the face of sharp turns.

Trek Madone 3.1 vs Merida REACTO RIVAL-EDITION

In the ranks of road bikes Merida REACTO RIVAL-EDITION, may not be cheap, but the extreme ride it gives you will be incomparable. The 557mm of stack is suitable for those of a larger size, allowing you to maintain a relatively comfortable flex angle while riding fast.

Unlike other road bikes, it’s an electronic drivetrain, an innovative upgrade in personality, and the powerful SRAM Rival AXS power meter maintains great forward momentum, so you don’t have to worry about tangled cable configurations in front of you hindering your ascent and descent.

Of course, the SRAM Rival also gives it an extremely long life, helping you to maintain great pedaling efficiency during your trip without having to worry about the chain coming off. If you are looking for a high-tech riding experience, then the Merida REACTO RIVAL-EDITION has every chance to be your next bike.

Learn more : Is Merida REACTO 6000 Worth Buying? – [Merida REACTO 6000 Review]

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IGOR FEDOROVICH SHARYGIN

Moscow 1937 - moscow 2004.

Brief scientific biography

Contributions to education, relevant bibliography, publications on the teaching of mathematics.

"Igor Fedorovich Sharygin was a member of a mathematical circle which I ran for high school pupils. The circle produced a lot of known mathematicians. Igor was distinguished among other participants by a large modesty coefficient: the ratio of someone's real mathematical abilities to his opinion about them."

"Geometry is a phenomenon of human culture. ... Geometry, as well as mathematics in general, helps in moral and ethical education of children. ... Geometry develops mathematical intuition, introduces a person to independent mathematical creativity. ... Geometry is a point of minimum for the distance between school mathematics and the mathematics of high level. Native language and literature, physical training, and mathematics are three crucial components of secondary education. Of all these subjects, it is mathematics, and especially Geometry, that is concerned with the widest range of long- and short-term educational goals."

"Learning mathematics builds up our virtues, sharpens our sense of justice and our dignity, strengthens our innate honesty and our principles. The life of mathematical society is based on the idea of proof, one of the most highly moral ideas in the world."

• Biographical information on Igor Fedorovich Sharygin, ICMI Bulletin , No. 47 (December 1999)
• In memoriam: Igor F. Sharygin (1937-2004), ICMI Bulletin , No. 55 (December 2004), 67-72

Portrait gallery:

• The Affiliated Study Groups
• The International Congresses on Mathematical Education (ICME)
• Interviews and film clips

The ultimate race bike Our fastest road race bike ever From a legacy of greatness comes a new standard of speed. Seven generations in the making, Madone SLR is our fastest and lightest Madone disc ever, pushing the boundaries of what’s possible with a triple threat of unprecedented aerodynamics, exceptional ride quality, and lightweight design. This race-ready bike is complete with never-before-seen IsoFlow technology that gives you every advantage in speed and handling.

“Trek’s seventh generation Madone blends radical design and performance” What the world is saying about the all-new Madone

“A pure-bred race bike"

“Does an exceptional job of balancing all-day comfort with the agility and aggression needed to be a top-tier race bike.”

“Every inch an aero race bike”

"One of the most visually striking and competent aero bikes available today [...] more aero, less weight, less complication."

“It doesn’t just look damn fast; it is damn fast”

“Seems to crave speed […] and the handling remains responsive at high speeds without lacking in stability.”

“Phenomenally fast and provides one heck of a thrilling ride”

“Offers all the aero tweaks and outright performance without compromising on day-to-day ridability.”

A new standard of speed Now 60 seconds/hour faster* We set out to make Madone the fastest road bike in the world. Years of research and development informed every aerodynamic inch of the seventh generation Madone SLR to create a frame, cockpit, and rider position that’s a whopping 19 watts faster than ever before.* *Compared to previous generation at 45km/h

• Read the white paper
• see the bike

Nearly 300 grams lighter*  

60 seconds/hour faster*  .

Never-before-seen IsoFlow technology Brutal performance. Total comfort. All-new IsoFlow technology soaks up fatiguing bumps in the road so you can ride stronger longer. A race-focused evolution of IsoSpeed comfort, IsoFlow flexes over bumps for a smoother ride, improves aerodynamics, and shaves weight to save precious seconds in the saddle.

Unprecedented road bike aerodynamics The devil is in the details when it comes to heart-pounding, race-winning speed. Every element of the new Madone Gen 7 was expertly sculpted to create our most aerodynamic road race bike ever, including a new generation of Kammtail tube shapes, an aero-optimized cockpit, and all-new IsoFlow technology that smooths air as it moves over the bike and accelerates it through the frame for even more free speed.

Positioned for power Ergonomic and aerodynamic riding position An overhauled bar/stem with a shorter reach and hoods that are 3cm narrower than the drops move you into a more comfortable ergonomic riding position. This narrower hood position also greatly reduces rider drag for extra aerodynamic speed while maintaining control in the drops so you don’t lose power in explosive moments.

Lighter than ever New gram-shaving design A new lightweight design and our best and lightest OCLV Carbon make the seventh generation Madone our lightest Madone disc ever, shaving around 300 grams off the previous ultra-lightweight version.

Behind the bike Hear from Senior Design Engineer, Alex Bedinghaus, on the new Madone SLR.

Pure race pedigree Informed by the world’s best cyclists Madone SLR was rigorously tested with the men’s and women’s Trek-Segafredo race teams to create a completely redesigned bike that’s faster, lighter, and fit for the biggest events on the cycling calendar, including the Tour de France and the first-ever Tour de France Femmes.

The new Madone SL Gen 7 offers the same revolutionary road race technology as the the seventh generation Madone SLR at a more accessible price point, thanks to a 500 Series OCLV Carbon frame and a two-piece flared RSL handlebar and stem. It’s the ultimate race bike, now available to more riders than ever. Our fastest and lightest Madone SL ever

Nearly 300 grams lighter*  

54 seconds/hour faster*  .

*When compared to Madone SL Gen 6 at 45km/h 

Choose your Madone

Madone Gen 6

The original industry-disrupting superbike. -Adjustable top tube IsoSpeed for a smoother ride -Traditional non-flared two-piece bar + stem -Grand Tour-winning aero tube shaping -Madone performance at a better value

Madone Gen 7

Built on a legacy of superbikes, Madone Gen 7 is our fastest and lightest Madone disc ever. -Lightweight, never-before-seen IsoFlow compliance tech -Flared aero-optimized bar (one-piece bar/stem on SLR, two-piece bar + stem on SL) -All-new ultra-fast aero tube shaping -Faster and lighter

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Descriptive geometry

A branch of geometry in which three-dimensional figures, as well as methods for solving and investigating three-dimensional problems, are studied by representing them in the plane. Such representations are constructed by means of central or parallel projection of the figure (nature, an object, an original) on the plane of projection.

Figure: d031370a

The most widespread kind of technical drawing is the composite drawing, constructed by means of an orthogonal projection. Essentially, the procedure is as follows. Choose two mutually perpendicular projection planes, $ \Pi _ {1} $ and $ \Pi _ {2} $. The plane $ \Pi _ {1} $ is called the horizontal projection plane, and $ \Pi _ {2} $ is the frontal projection plane. Project an arbitrary point $ A $ in space orthogonally onto these planes (see Fig. a); this gives the horizontal projection $ A _ {1} $ and the frontal projection $ A _ {2} $. It is sometimes useful to add a third — the profile projection $ A _ {3} $ on the profile plane $ \Pi _ {3} $, perpendicular to $ \Pi _ {1} $ and $ \Pi _ {2} $. To obtain a composite drawing, combining these three projections, make the planes $ \Pi _ {1} $ and $ \Pi _ {3} $ coincide with $ \Pi _ {2} $( the "principal" plane) by rotating them about the lines $ p _ {12} $ and $ p _ {23} $ in which they intersect $ \Pi _ {2} $( see Fig. b). In practice, the position of the projection axes $ p _ {12} $ and $ p _ {13} $ is usually not marked, i.e. the position of the projection planes is defined only up to a parallel motion.

Figure: d031370b

For the construction of more readily visualizable representations, descriptive geometry makes use of an axonometry . To represent objects of considerable extension, one uses drawings obtained by central projection — in other words, in perspective.

There are many books on descriptive geometry in the German language, e.g. [a1] . An English language reference is [a2] .

A renaissance of descriptive geometry has been sparked by computer graphics; e.g., in matters concerning the two-dimensional graphical representation of three-dimensional objects (perspective, hidden outlines), cf., e.g., [a3] , [a4] and references therein.

• This page was last edited on 26 March 2023, at 11:38.
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