User manual BONTRAGER RACE XXX LITE

[. . . ] . . . . . . . . . . . . . . . . . . . . . . . . . 3 Installation Pedal removal and installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Changing crank length . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Crank arm removal and installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Bottom bracket removal and installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Limited Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 © Copyright Trek Bicycle Corporation 2007 All rights reserved introduction The crankset- left and right crank arms and chainring(s) (Figure 1), and bottom bracket (the axle and bearings on which the crankset rotates)- allows your legs to pedal, transmitting power to the rear wheel. This section explains how to inspect, adjust, lubricate your crankset and bottom bracket, and how to check carbon fiber parts for damage. Cassette Crank bolt Chain Crankset Pedal Figure 2- Drivetrain parts inspecting the crankset and bottom bracket Once a month, clean the chainrings and inspect them for damage. If any teeth are bent or broken, have the chainring replaced by your dealer. Note that on some chainrings, a few teeth have a special shape to enhance shifting. [. . . ] If you aren't sure, ask your dealer. But as a rule, it is better to err on the safe side and replace the bike or parts more frequently. carbon fiber composite inspection procedures Carbon fiber is among the strongest materials used in bicycle manufacture. However, carbon fiber has unique qualities, different from metal parts, and must be inspected carefully for damage. Unlike metal parts, carbon fiber parts that have been damaged may not bend, bulge, or deform; a damaged part may appear to be normal to a cursory glance. Use the following procedures to inspect carbon fiber parts: · Check for scratches, gouges, or other surface problems. · Check the part for loss of rigidity. · Check the part for delamination. · Listen for unusual creaking or clicking noises. The tests are difficult to describe, so as an aid to describing the tests we provide a movie of inspecting a carbon fiber part in the owner's manual section of the Bontrager website. If you have any doubts about the integrity of a part, do not ride the bicycle. inspecting carbon fiber parts instaLLatiOn instRuctiOns These instructions explain the steps to remove an existing crankset and install a new one. The correct installation of a new Bontrager crankset is critical to the rider's safety, so this work should be performed only by an experienced mechanic with the proper tools. If you are not sure of your ability to correctly install this crankset, have the crankset installed by your Bontrager dealer. Lubricating threads When installing a threaded part, apply a small amount of bicycle grease to the threads, except for aluminum chainring bolts. With aluminum chainring bolts, apply a drop of Loctite 222 to the threads. The crankset interfaces with the frame, bottom bracket, chain, front derailleur, and front shifter. These parts must be compatible and the correct sizes and designs to function correctly. If you are not sure if this crankset is compatible with your bicycle, consult your dealer. check all parts for compatibility before installing Pedal removal and installation to remove the pedals Note: There are right and left pedals, usually marked with a letter stamped on the end of the pedal axle, or on the wrench flats. Turn the right pedal spindle counter-clockwise to remove the right pedal. Turn the left pedal axle clockwise to remove the pedal. Place the pedal washer (Figure 4) over the pedal threads. Thread the pedal into the crank arm by hand. Tighten the pedals as in Inspect the crankset and bottom bracket. to install the pedals Pedal washer changing crank length The Bontrager Race XXX Lite ATB crankset uses ALS (Adjustable Length System) to provide a choice of lengths: 170 and 175mm. To change length, simply turn around the pedal-mount insert in the crank. [. . . ] Attach the crankarms and tighten the crank bolts. 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. After installing a crankset, check that there is at least 3mm between any part of the crankset and any part of the frame. [. . . ]