Embodiments include an off-road vehicle with a straddle seat, a plurality of ground engaging members, a prime mover and a frame having a removable frame portion overlying the prime mover, wherein at least a portion of the engine extends above at least a portion of the removable frame portion, and wherein at least a portion of the straddle seat extends over the removable frame portion and the prime mover.

Embodiments of the present disclosure describe a snow vehicle including an engine mounted on a frame, a drive track in contact with the frame, a drive train operatively interconnecting the engine with the drive track for delivering propulsive power to the drive track, a fork connected to the frame, one or more skis connected to the fork, a drop fork component positioned between a fork and handlebars, and an exhaust system. The drive train includes a continuously variable transmission (CVT) positioned within a CVT housing.

In an internal combustion engine, a gasket is disposed between joining surfaces of a cylinder block and a cylinder head, and a heat radiation rib that extends in a cylinder axis direction is formed on the cylinder block or the cylinder head. In such an internal combustion engine, the gasket includes: a portion to be sandwiched that is sandwiched between the joining surfaces; and an extending portion that protrudes toward an outside from the portion to be sandwiched as viewed in a cylinder axis direction.

A saddle-riding vehicle includes a radiator in front of an engine of the saddle-riding vehicle and on one lateral side of the vehicle in a vehicle widthwise direction with respect to a center line in the vehicle widthwise direction. The radiator includes: a radiator body that allows coolant of the engine to flow through the radiator body; a radiator fan at a rear face of the radiator body; and a fan cover that covers the radiator fan from a rear of the radiator fan to guide exhaust air from the radiator to the one lateral side in the vehicle widthwise direction.

A saddle-riding vehicle includes: a canister in front of an engine and on one lateral side of a vehicle body in a vehicle widthwise direction with respect to a center axis of the vehicle body in the vehicle widthwise direction, the center axis extending in a front-to-rear direction; and an accessory stay extending in a vertical direction from a main frame that supports the engine. The canister has an elongate shape in a longitudinal direction of the canister, and the canister is disposed on an inner side of the accessory stay in the vehicle widthwise direction to be supported by the accessory stay with the longitudinal direction extending along the accessory stay.

A saddle-riding vehicle includes: a canister in front of an engine and on one lateral side of a vehicle body in a vehicle widthwise direction with respect to a center axis of the vehicle body in the vehicle widthwise direction, the center axis extending in a front-to-rear direction; and an accessory stay extending in a vertical direction from a main frame that supports the engine. The canister has an elongate shape in a longitudinal direction of the canister, and the canister is disposed on an inner side of the accessory stay in the vehicle widthwise direction to be supported by the accessory stay with the longitudinal direction extending along the accessory stay.

A heat exchanger shield for a snowmobile, the heat exchanger comprising an elongated body having a pair of opposing legs, and a pair of engagement structures, one engagement structure formed at a distal end of a corresponding one of the legs, wherein the engagement structures are structured and operable to slidingly engage a corresponding shield retention guide formed in a snowmobile heat exchanger.

Embodiments include a clutch guard for a CVT in a vehicle, including a shield body, a torque control link section integrated with the shield body and including one or more engine mounting features for securing to an engine, and wherein the torque control link section includes a jackshaft aperture for receiving a jackshaft, and an output shaft clearance component, in contact with the output shaft, and wherein the torque control link portion secures a distance between the shafts.

A heat exchange assembly includes a body extending between right and left end caps. The longitudinal extent of the end caps may be greater than the longitudinal extent of the body. Each end cap includes a forward mounting tab, an inward mounting tab, and/or an outward mounting tab. The shape of the right end cap may be a mirror image of the shape of the left end cap.

A heat exchange assembly includes a body extending between right and left end caps. The longitudinal extent of the end caps may be greater than the longitudinal extent of the body. Each end cap includes a forward mounting tab, an inward mounting tab, and/or an outward mounting tab. The shape of the right end cap may be a mirror image of the shape of the left end cap.