GEAR CHANGE DRUM/SHIFT FORK(S)

A gear change drum (or shift drum) is a component in a motorcycle's or vehicle’s transmission system responsible for controlling the gear selection process. It works by rotating and engaging various shift forks, which physically move the gears into position. The shift forks are connected to the drum and slide along the transmission’s shafts to engage different gears as the driver shifts. Together, the gear change drum and shift forks ensure smooth and accurate gear changes, playing a vital role in the transmission system's operation.