Abstract: A vehicle includes a front wheel, a rear wheel, an engine, and a jack shaft. The engine is coupled with the rear wheel and the jack shaft. The jack shaft is configured to selectively couple the engine with the front wheel.

Abstract: A V-type engine includes a housing, a crankshaft, a counterbalance shaft, a first camshaft, and a second camshaft. The crankshaft, the counterbalance shaft, the first camshaft, and the second camshaft are rotatably supported by the housing. The crankshaft has a crankpin. In one embodiment, an imaginary plane perpendicular to the rotational axis of the crankshaft intersects each of the crankpin and the counterbalance shaft such that the crankshaft is operatively coupled with each of the counterbalance shaft and the first camshaft on one side of the imaginary plane, and the counterbalance shaft is operatively coupled with the second camshaft on an opposite side of the imaginary plane. The V-type engine may be included in a vehicle.

Abstract: A motorcycle is provided that includes a frame and an engine supported by the frame. The motorcycle also includes a continuously variable transmission operatively driven by the engine and a reduction gearset operatively driven by the continuously variable transmission. The motorcycle further includes a rotatable rear wheel operatively, indirectly driven by the reduction gearset and a swing-arm assembly pivotably mounted, at a forward end thereof, on the frame. The swing-arm assembly is coupled, at a rear end thereof, to the rear wheel. The swing-arm assembly includes first and second elongated and laterally spaced fork members. The reduction gearset set is positioned forward of the rear wheel and laterally between the first and second fork members.

Abstract: A motorcycle includes a frame and an engine supported by the frame. A continuously variable transmission is operatively and indirectly driven by the engine and is supported by the frame. A rotatable rear wheel is operatively and indirectly driven by the continuously variable transmission, which is generally vertically oriented.

Abstract: A motorcycle is provided having front and rear wheels. A frame is supported on and connected to the front and rear wheels. The frame includes a rear swing frame pivotally connected to a front frame. A seat and an engine are mounted to the frame. The engine is disposed between the front and rear wheels. A radiator is mounted to the rear swing frame and is disposed between the engine and the rear wheel. A fan assembly is connected to the radiator and is disposed rearward of the radiator. An inner fender is disposed between the radiator and the rear wheel.

Abstract: A motorcycle is provided having front and rear wheels. A chassis is supported on and connected to the front and rear wheels. An engine is mounted to the chassis and includes front and rear cylinder heads joined to an engine block. Front and rear mounting assemblies are provided for mounting the engine to the chassis. The rear mounting assembly includes a pair of laterally spaced-apart support plates secured between the engine and a top frame structure of the chassis. The support plates are disposed rearward of the rear cylinder head. A radiator is mounted to the chassis. A thermostat is connected between the engine and the radiator and is operable to control coolant flow from the engine to the radiator. The thermostat is disposed between the support plates.

Abstract: A motorcycle is provided having front and rear wheels. A frame is supported on and connected to the front and rear wheels. The frame includes a rear swing frame pivotally connected to a front frame. A seat and an engine are mounted to the frame. The engine is disposed between the front and rear wheels. A radiator is mounted to the rear swing frame and is disposed between the engine and the rear wheel. A fan assembly is connected to the radiator and is disposed rearward of the radiator. An inner fender is disposed between the radiator and the rear wheel.

Abstract: A motorcycle including a main frame, a rear swing frame, and a pull shock assembly operatively disposed between the main frame and the rear swing frame. The swing frame is pivotally mounted to the main frame. The main frame includes a pair of slide tracks that receive a slide member of the pull shock assembly. A link arm extends between a forward portion of the swing frame and the slide member, and translates pivotal movement of the swing frame into sliding longitudinal movement of the slide member. A damper associated with the slide member restricts sliding movement of the slide member and, thus, pivotal movement of the swing frame. The link has a forward end secured to the swing frame and a rearward end secured to the slide member.

Abstract: A motorcycle having a radiator positioned between an engine and a rear wheel and including an air management system for guiding cooling air to the radiator. The air management system includes a pair of top ducts, a middle duct, a bottom duct and a pair of rear ducts. The top and middle ducts extend over the engine, while the bottom duct extends below the engine. The rear ducts are disposed rearward of the engine.