Chapter 3: inspection, adjustment, and lubrication

overview of the drivetrain

The drivetrain (Figure 1) 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)

• Cassette

• Chain

When the drivetrain is working properly, shifting is easy, your bicycle 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. Read the Warning about Mechanical Work before performing any service work on your bicycle.

Parts of the bicycle drivetrain

Figure 1:

Parts of the bicycle drivetrain

Specific information

To read more specific information, select the page:

· Crankset

· Bottom bracket

· Chain

· Cassette

· Pedals