A motorcycle is described which has a frame and a rear wheel attached to a
driven pulley. A drive pulley is rotatably mounted to a rigid bracket
attached to the frame such that a relative orientation between the drive
pulley and the driven pulley is maintained substantially constant. A
drive belt is coupled to the drive pulley and the driven pulley such that
a rotation of the drive pulley imparts a rotation of the driven pulley. A
transmission output gear is attached to an output of a transmission, and
a drive coupler is provided as an interface between the transmission
output gear and the drive pulley.