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Bontrager Warranty

Trek Bicycle Corporation warrants each new Bontrager component against defects 

in workmanship and materials for the a period of one year from the date of sale.

This warranty does not cover-

• Normal wear and tear
• Improper assembly
• Improper follow-up maintenance
• Installation of parts or accessories not originally intended for, or compatible 

with, the wheels as sold

• Damage or failure due to accident, misuse, abuse, or neglect
• Labor charges for part replacement or changeover

This warranty is void in its entirety by any modification of the component or 

its parts.

This warranty is expressly limited to the repair or replacement of a defective 

item and is the sole remedy of the warranty. This warranty extends from the 

date of purchase, applies only to the original owner, and is not transferable. 

Trek is not responsible for incidental or consequential damages. Some states 

do not allow the exclusion of incidental or consequential damages, so the above 

exclusion may not apply to you. 

Claims under this warranty must be made through an authorized dealer. Proof 

of purchase is required.

This warranty gives the consumer specific legal rights, and those rights may 

vary from place to place. This warranty does not affect the statutory rights of 

the consumer.

the consumer.

Bottom bracket removal and installation

A conventional crankset is comprised of a left crankarm, right crankarm, and 

bottom bracket. With the Bontrager Road crankset, the right crank arm and 

bottom bracket are inseparable.

To remove a standard bottom bracket

1. Loosen the crankarm bolt on the left crankarm and remove the left crankarm.
2. Loosen the crankarm bolt on the right crankarm and remove the right 

crankarm.

3. Using the proper tool, loosen and remove the left ("adjustable") bottom 

bracket cup.

The left cup is right-hand threaded, and the right cup is left-hand (reverse) threaded.

3. Using the proper tool, loosen and remove the right ("fixed") bottom bracket 

cup.

To install a Giga-Pipe bottom bracket

Make sure the frame's bottom bracket shell threads are clean and in good 

condition. If necessary, chase and face the threads.

Grease all threaded surfaces, the bearing surfaces of the crank bolt, the 

interfaces between the bearings and axle, the axle splines, and also the bearing 

side of the seals.
1. Install the right bottom bracket cup, and tighten to 300-360 lb•in (34-41Nm).
2. Install the left bottom bracket cup, and tighten to 300-360 lb•in (34-41Nm).
3. Pass the bottom bracket axle through the right cup to the left cup.
4. Attach the left crankarm and tighten the crank bolt to 

360-415 lb•in (41-47 Nm)

.

5. Check the left crankarm for play. 

If there is play, remove both crankarms, grease the contact between the bottom 

bracket axle and the bearings, and reinstall. It may require installing the cranks 

several times to eliminate all play.

Summary of Contents for 253427

Page 1: ...the supplied instructions thoroughly before using your new crankset the manuals contain important safety and maintenance information If you do not understand the information in this manual or you have a question about your crankset that this manual does not cover consult your Bontrager dealer If you have a question or problem that your Bontrager dealer can t handle contact us at Bontrager Componen...

Page 2: ...set to wear prematurely Replacing the chain takes special tools and training and should only be done by your dealer Every 3 months inspect your pedals Tighten the pedals into the crank arms turn the right pedal clockwise but the left pedal counter clockwise Figure 3 Pedals 350 380 lb in 40 2 42 9 Nm Every 3 months inspect the crankset Clean the chainrings and inspect them for damage If any teeth a...

Page 3: ...igure 3 2 Turn the left pedal axle clockwise to remove the pedal To install the pedals 1 Apply a light coat of Wrench Force synthetic grease or a similar lubricant over all the threads See your dealer for a recommended grease 2 Place the pedal washer over the pedal threads 3 Thread the pedal into the crank arm by hand 4 Follow the instructions for tightening pedals in Inspect your crankset regular...

Page 4: ...oval and installation A conventional crankset is comprised of a left crankarm right crankarm and bottom bracket With the Bontrager Road crankset the right crank arm and bottom bracket are inseparable To remove a standard bottom bracket 1 Loosen the crankarm bolt on the left crankarm and remove the left crankarm 2 Loosen the crankarm bolt on the right crankarm and remove the right crankarm 3 Using ...

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