If you do not understand the information, or you have a question about this part 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 Components 920.478.4678 Attn: Customer Service 801 W. Madison Street Waterloo, Wisconsin 53594 Read this manual before you ride In this manual, the Safety Alert Symbol is used to alert you to potential personal injury hazards. Obey all safety messages that follow this symbol to avoid possible injury or death. Contents Read this manual before you ride....................................................1 Conditions for Use.......................................................................1 Introduction.....................................................................................2 Carbon fiber composite................................................................2 Maintenance.....................................................................................3 Inspection....................................................................................3 Lubrication..................................................................................4 Adjustment...................................................................................4 General care and maintenance....................................................4 Installation instructions...................................................................6 Troubleshooting...............................................................................8 Bontrager Limited warranty............................................................9 Carbon crash replacement policy................................................9 i Conditions for Use Each Bontrager part is intended to be used in a specific set of conditions. Riding a Bontrager part in a Use Condition that is more stressful (higher number) than that for which it is intended can cause the part to fail. Determine the type of Bontrager part you have purchased, and avoid conditions higher than the intent of your part, as listed below: Use Condition Bontrager part type For riding on pavement only Riding on a paved surface where the tires do not lose ground contact Race XXX Lite road crankset For riding on improved paths and roadways only No jumping Condition 1 plus smooth gravel roads and improved trails with moderate grades where the tires do not lose ground contact For riding on unimproved trails with small obstacles Conditions 1 and 2 plus rough trails, small obstacles, and smooth technical areas, including areas where momentary loss of tire contact with the ground may occur. NOT jumping. Race XXX Lite ATB crankset For riding on rough trails with medium obstacles Conditions 1, 2, and 3 plus rough technical areas, moderately sized obstacles, and small jumps. Race XXX Lite ATB crankset For extreme riding User caution advised Jumping, hucking, high speeds, or aggressive riding on rougher surfaces, or landing on flat surfaces. This type of riding is extremely hazardous and puts unpredictable forces on a bicycle which may overload the frame, crankset, or parts. Big Earl crankset Conditions for use Introduction The drivetrain consists of the parts of the bicycle that transmit power to the rear wheel: • Pedals (and toe-clip assemblies on some models) • Crankset and bottom bracket- left and right crank arms, chainring(s), and bottom bracket (the axle and bearings on which the crankset rotates) (Figure 1) • Cassette and chain When the drivetrain is working properly, shifting is easy, your bike is quiet, and its efficiency can reach its maximum. Read and follow the sections that discuss the parts that comprise the drivetrain to make sure all the parts are working properly. Carbon fiber composite The Bontrager Race XXX Lite crankset is made from OCLV carbon fiber composite. 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. Follow the inspection procedures in the Maintenance section. Figure 1 Exploded diagram of Race XXX Lite crankset WARNING A damaged carbon fiber part can fail suddenly, causing serious injury or death. Inspect a carbon fiber bicycle or parts for damage frequently. If you suspect a carbon fiber part is damaged, immediately stop riding the bicycle. Before riding, replace the part or take the bike to your dealer for service. Introduction Maintenance Correct maintenance of the crankset and other parts of the drivetrain will make the shift system work better and pedalling smoother, and increase the life of the parts. Maintenance includes Inspection, Lubrication, and Adjustment. Inspection Once a month check that the chain is clean, free of rust, and properly oiled. A dirty chain can prematurely wear the chainrings. All links of the chain should pivot smoothly and without squeaking, an...