Motorcycle with vehicle speed sensor

The invention aims to contrive a reduction in cost, through adopting a versatile vehicle speed sensor, to contrive an enhancement of mountability of the vehicle speed sensor, and to dispose the vehicle speed sensor compactly on the outside in the radial direction of a gear. A motorcycle includes a power unit having a torque take-out shaft 91 for outputting a torque generated by an internal combustion engine as a drive torque for driving a rear wheel, a torque transmission mechanism T which includes a gear pair G1 consisting of bevel gears and a drive shaft and which transmits the drive torque to the rear wheel, and a vehicle speed sensor 120 such that teeth 102a of a driven gear 102 constituting the gear pair G1 constitute a portion to be detected. The vehicle speed sensor 120 includes a main body portion having a detecting portion 121b opposed to the addendum of the teeth 102a in the direction A5 of a normal to the addendum cone surface of the driven gear 102, and the main body portion 121 extends along the normal direction A5.