Which option lists the drive train components in the order given?

• A. Shifters, Cassette, Front Derailleurs, Rear Derailleurs, Crank Set, Chain
• B. Shifters, Cassette, Front/Rear Derailleurs, Crank Set, and Chain
• C. Shifters, Cassette, Derailleurs, Chain, Crank Set
• D. Shifters, Chain, Cassette, Derailleurs, Crank Set

Answer: (B)

Think of the drivetrain as a control-to-motion sequence. The shifters are where gear selection starts. Once you shift, the derailleurs—front and rear—move the chain to the chosen gear positions. The rear cassette provides the gear options the chain can land on, while the crank set is where the chain is driven from and returns to as you pedal. The chain is the continuous link that travels around the chainrings and through the cassette, transmitting power through the system. This flow—Shifters, Cassette, Front/Rear Derailleurs, Crank Set, and Chain—matches how the drivetrain’s components interact during shifting and riding. Other orders can mix up the roles (who moves the chain, where the chain sits, and how power is transmitted), making them less intuitive for understanding how gear changing and propulsion actually work.