trek bike brake repair

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How to Fix Brakes on a Bike

Last Updated: April 28, 2023

Checking Calipers

Changing brake pads, servicing the brake levers, coaster brakes, expert q&a.

This article was co-authored by Jonas Jackel . Jonas Jackel is the Owner of Huckleberry Bicycles, a bicycle retail store based in San Francisco, California. Jonas has over 20 years of experience managing bicycle retail stores and has operated Huckleberry Bicycles since 2011. Huckleberry Bicycles specializes in servicing, repairing, and custom building road, cross, gravel, touring, folding, and e-bikes. Jonas was also previously sat on the Board of Directors for Bike East Bay, a bicycle-advocacy non-profit organization based in Oakland, California. This article has been viewed 1,076,877 times.

There can be many problems and solutions to bicycle brakes. This article will attempt to cover the common problems with caliper type brake systems, and only mention coaster brakes briefly.

Things You Should Know

• Remove the nut and washers from your old brake pads, and pull the pad free from the caliper arm. Then, install your new brake pads.
• Service your brake cables by lubricating the caliper pivot with brake oil. Your brake cables should be about 1⁄4 inch (0.6 cm) from the wheel rim.
• Lubricate the “pivot” pin on the lever handle with brake oil to service your brake levers.

Servicing the Cables

Servicing the Calipers

• Don't buy a smaller brake pad Thanks Helpful 5 Not Helpful 2
• Read the owners manual Thanks Helpful 2 Not Helpful 3
• If you are not sure how to mount or unmount your brake pads, don't do it. Get help from someone who does. Thanks Helpful 2 Not Helpful 3

• Secure the brake pad firmly so that your newly installed pads work efficiently Thanks Helpful 0 Not Helpful 1
• Ride slowly to test the brakes first! Thanks Helpful 0 Not Helpful 1

Things You'll Need

• New brake pads
• Right type of replacement parts.
• Basic hand tools.
• Lubricating oil.

You Might Also Like

• ↑ https://totalwomenscycling.com/road-cycling/maintenance/ask-expert-know-brake-pads-need-replacing#RCZfVeQJIlpEEDip.97
• ↑ https://www.bicycling.com/bikes-gear/a20023166/the-beginners-guide-to-disc-brakes/
• ↑ https://www.bicycling.com/repair/a20021308/skills-test-replace-worn-brake-pads/
• ↑ https://www.youtube.com/watch?v=vsv5THnUl-Q

About This Article

If your bike’s brake pads are worn to less than ¼ of an inch, you’ll have to replace the pads. To do so, remove the nuts and washers from your old pads and pull the pads free from the calipers, which squeeze the pads to the tires to make the bike stop. Then, put the new pads in, align them with the tires, and replace the nuts and washers. If you need to adjust your brake’s calipers, tighten the spring on the side that’s moving too much by bending it with pliers. For brake cables that are really stiff or hard to work, remove them completely and lubricate them. To learn how to check your bike’s pads, cables, and calipers to see what needs to be fixed, read on! Did this summary help you? Yes No

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Trek 6000 Brake Component Replacement

Introduction.

Before beginning, be sure to wear clothes that you won't mind possibly getting grease on. This guide may be helpful if you are having issues with your brakes and need to replace them. This guide may also be uesful if you would like to upgrade the components on your bike.

What you need

Step 1 trek 6000 brake component replacement.

Carefully flip bike over, balancing it on the handle bars and seat.

Use a level floor free of clutter.

Add Comment

Release the clamping mechanism that holds the front forks to the wheel bearing by twisting it 180 degrees.

Remove the plastic nut that is located on the opposite side.

Remove the axle bolt and pay attention to the order and orientation of the springs.

Remove the front wheel from the forks by lifting it straight up.

Remove the 6 screws holding the brake rotor to the front wheel using the T25 Torx driver.

When installing the new brake rotor, be sure to orient the arrow shown in the wheel's direction of travel.

Loosen the brake cable clamp using the 5mm allen wrench until the cable can be pulled free.

Remove the two screws holding the caliper to the front fork using the 5mm allen wrench. Be sure to pay attention to the order and orientation of the washers.

Remove the cable by twisting the black plastic cable guide out of the hole.

Align the channels on the guide and the nut to free the cable.

To reassemble your bike, follow these instructions in reverse order.

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with 1 other contributor

Mario Maraccini

Member since: 09/24/17

101 Reputation

1 Guide authored

Michigan Tech, Team S5-G8, Galliah Fall 2017 Member of Michigan Tech, Team S5-G8, Galliah Fall 2017

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nvm moscow throttle

• Thread starter Widget2k13
• Start date May 3, 2020

Finding my (electric) wheels

hi everyone, im new to the forum and have come with a question about the ncm moscow, i have owned the bike for over a year now and seen that the moscow plus has a throttle fitted to it, does anyone know if its possible to fit one to the normal moscow and if so where to purchase what i need in the uk as i cannot find anything about it at all. thank you  

Esteemed Pedelecer

Show us a pic of the main controller and it's wring not the handle bar display.  

i will get some pictures tomorrow, i know its a sealed unit and one wire goes to the pedal crank and another goes away inside the frame  

hi, here is a pic of the control box, not sure if it helps, one wire goes to the motor, one to the pedal crank and the others go up to the battery area  

Attachments

All I see is a BB shell with two cables running under it.  

its a sealed unit fixed to the frame, there is no way of getting into it i dont think  

In that case then a throttle can't be retrofitted if there isn't an unused three wire connection.  

The Oxygen ST uses a similar frame which is likely a generic China/Taiwan frame utilised by other companies with different components and motor kits, the Oxygen is throttle capable.  

Widget2k13 said: hi everyone, im new to the forum and have come with a question about the ncm moscow, i have owned the bike for over a year now and seen that the moscow plus has a throttle fitted to it, does anyone know if its possible to fit one to the normal moscow and if so where to purchase what i need in the uk as i cannot find anything about it at all. thank you Click to expand...

Kommunikation zwischen C7 Display und Motorkontroller NCM Venice+ Das-Kit

An lcd won't enable you to fit a throttle, you need a controller with the wired out put for one as well as the PAS out put. One can't be used for the other.  

jokskot said: It is possible to fit a throttle by tapping into the cable linking the display and the controller fitted near the bottom bracket and I have done so . See post 8 in the attached link for circuit schematic & background info.: Kommunikation zwischen C7 Display und Motorkontroller NCM Venice+ Das-Kit Moin, ich habe bereits im dem 'anderen' pedelec und E bike Forum meine Untersuchung und Ergebnisse veröffentlicht, hoffe aber hier zusätzlich noch weitere interessierte Leute zu erreichen. Zunächst einmal ein Dank an Arthus Dent der schon vor über einem Jahr damit angefangen hat und auf dessen... www.pedelecforum.de Google translate will deal with the language if your German is not up to it! You need to put 5 v (from the purple and black wires across the throttle Hall sensor and attach the Hall sensor signal wire to the yellow line. If you have a voltage display on your throttle and it has the range up to at least 60 v, you could also tap into the red wire of the cable to display the battery voltage. Unfortunately all you achieve with this, is having the "walk" function (ie 8 or is it 6? kph) available via the throttle. It should be possible to increase the speed available by resetting the firmware but this is beyond my ability & competence! I have posted (under the same nom de plume as I use here) in the link given above but no usable feedback has been provided. If anyone reading this & can help with this, please post here or send me a pm. Click to expand...

Das-Kit e-Bike Conversion Kit, 48V 500W | Leon Cycle

At a price....!!!! Possibly the motor available in the US has more power, but I suspect the rest is just firmware tuning. You've probably noticed the flash screens you get on switching on, include one that says EU300 or something which I take to be an EU compliant firmware version.  

jokskot said: At a price....!!!! Possibly the motor available in the US has more power, but I suspect the rest is just firmware tuning. You've probably noticed the flash screens you get on switching on, include one that says EU300 or something which I take to be an EU compliant firmware version. Click to expand...

Kosh said: Yes on all counts ! Click to expand...

WheezyRider

Nealh said: An lcd won't enable you to fit a throttle, you need a controller with the wired out put for one as well as the PAS out put. One can't be used for the other. Click to expand...

Kosh said: Hello just out of interest , i bought a Moscow at the end of May and was also looking into fitting a throttle , looks like the answer is no, not without changing the Lcd unit (as far as i can make out) there seems to be no info out there (did find something in German) and any questions to Leon cycle's go unanswered, i got the bike ok (tracking did not work) but am hoping i dont get any problems as i dont think Leon are going to be any help ... awful customer service ! very happy with bike though ... done couple of hundred miles to date (mainly cycle tracks) let me know if you find out anything more re throttle .... thanks Click to expand...

WheezyRider said: Have you been able to get into the setup mode with the DAS KIT LCD? Codes I've seen are 8088 and 8018, depending on the unit. Then you can set the wheel diameter properly. Leon Cycles will not tell you this, I only found it on the web. Click to expand...

jokskot said: I’d be interested to know where you can get the correct 8 pin Julet connector from in China. I was unable to locate one in China, but did find a good supplier in Germany. However fitting a different display is likely to cast £50+ & may not solve the problem of speed available via the throttle. I was luckier than you with Leon and they provided a few pass codes to try. 8018 worked for me, accessed after pressing the + & - keys together for a few seconds. Difficult to describe but pretty intuitive! This allows changing the voltage (if you really want), the wheel diameter and power which essentially limits the current supply. I have found little different between the “turbo” & normal, but “eco” limited the current indicated to 5 bars rather than 6 and made hill-climbing more demanding on the rider. If you change anything remember to press the + & - buttons together to save the changes and return to the standard screen. Has anyone got experience of flashing firmware on microprocessors and could offer me guidance? ( see earlier posts in this thread and posts elsewhere on this site by me) Click to expand...

Electric Bicycle E-bike Waterproof Cable Connector For E-brake Display Throttle | eBay

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Don’t forget to scrub behind your (g)ears We’re always here to help, but there’s a lot you can do for your bike at home – with little more than a toothbrush. Watch these videos to learn how to wash your bike, maintain your drivetrain, pump your tyres and perform pre-ride checks. Showing your bike some W.L.C. (wash, lube and check) every 25 hours of riding or so will help keep your ride rolling like new.

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