Patent ID: 7854178

Claim:
A straddle-type four wheeled vehicle including: a gear transmission capable of changing a gear arrangement among a forward state and a backward state; a change drum disposed substantially in parallel to a crankshaft of an engine and rotating at every predetermined angle to change the gear arrangement of the gear transmission; and a reverse lock device; the reverse lock device comprising: a stopper rotated integrally with the change drum; a reverse lock pin disposed substantially perpendicularly to an axial direction of the change drum and capable of moving in a direction of a pin length between a lock position, at which the reverse lock pin locks the stopper so as to prevent the change drum from rotating to a backward position of the change drum, and an unlock position, at which the reverse lock pin unlocks the stopper; and an unlocking force transmission mechanism for moving the reverse lock pin to the unlock position, wherein the reverse lock pin is inserted into a pin inserting hole formed on a side wall of a transmission case which houses the gear transmission therein, wherein an axial end of the change drum has a projection which projects in an axial direction from a bearing for supporting the change drum, the projection having the stopper.