Introduction
The drivetrain consists of the parts of the bicycle that transmit power to the rear wheel:
•Pedals (and
•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, shift- ing 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 com-
posite. 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.
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