Patent ID: 8721487

Claim:
A straddle-type vehicle comprising: an engine having a crankshaft; a planetary gear mechanism including a ring gear rotatable with the crankshaft, a sun gear disposed concentrically with the ring gear, at least two planetary gears that mesh with the ring gear and the sun gear, and a planetary carrier rotatably and revolvably supporting the planetary gears and rotating in association with revolution of the planetary gears; a rotary shaft rotating with the sun gear; an output shaft rotating with the planetary carrier; a belt-type continuously variable transmission including a primary shaft rotatable with the rotary shaft, a primary pulley attached to the primary shaft, a secondary shaft rotatable with the crankshaft, a secondary pulley attached to the secondary shaft, and a belt wrapped around the primary pulley and the secondary pulley; and an actuator configured to change a transmission gear ratio of the belt-type continuously variable transmission; wherein the crankshaft, the planetary gear mechanism, the rotary shaft, and the belt-type continuously variable transmission form a cyclic power transmission passage; wherein a centrifugal clutch is disposed in the cyclic power transmission passage; and wherein the centrifugal clutch is connected between the rotary shaft and the primary shaft.