Abstract: A two-wheeled vehicle includes a frame assembly having a front end and a rear end extending along a longitudinally-extending centerline, a front ground-engaging member operably coupled to the front end of the frame assembly at a front rotational axis, and a rear ground-engaging member operably coupled to the rear end of the frame assembly at a rear rotational axis. A wheel base is defined between the front and rear rotational axes and a vertically-extending centerline of the vehicle extends vertically at the midpoint of the wheel base and is perpendicular to the longitudinally-extending centerline. The vehicle also includes a fuel tank, an airbox assembly, and a battery all positioned relative to the vertically-extending centerline of the vehicle.

Abstract: A two-wheeled vehicle includes a frame assembly having a front end and a rear end extending along a longitudinally-extending centerline, a front ground-engaging member operably coupled to the front end of the frame assembly at a front rotational axis, and a rear ground-engaging member operably coupled to the rear end of the frame assembly at a rear rotational axis. A wheel base is defined between the front and rear rotational axes and a vertically-extending centerline of the vehicle extends vertically at the midpoint of the wheel base and is perpendicular to the longitudinally-extending centerline. The vehicle also includes a fuel tank, an airbox assembly, and a battery all positioned relative to the vertically-extending centerline of the vehicle.

Abstract: A motorcycle (10) comprising a first frame member (110) having a first opening (128) and a plurality of wires. A joint member (140) is coupled to the first frame member and at least a second frame member (122, 62). The joint member has a second opening (142) therethrough. The plurality of wires extend into the first opening through the first frame member and through the second opening of the joint member.

Abstract: A two-wheeled vehicle includes a frame assembly having a front end and a rear end extending along a longitudinally-extending centerline, a front ground-engaging member operably coupled to the front end of the frame assembly at a front rotational axis, and a rear ground-engaging member operably coupled to the rear end of the frame assembly at a rear rotational axis. A wheel base is defined between the front and rear rotational axes and a vertically-extending centerline of the vehicle extends vertically at the midpoint of the wheel base and is perpendicular to the longitudinally-extending centerline. The vehicle also includes a fuel tank, an airbox assembly, and a battery all positioned relative to the vertically-extending centerline of the vehicle.

Abstract: A two-wheeled vehicle includes a frame assembly having a front end and a rear end extending along a longitudinally-extending centerline, a front ground-engaging member operably coupled to the front end of the frame assembly at a front rotational axis, and a rear ground-engaging member operably coupled to the rear end of the frame assembly at a rear rotational axis. A wheel base is defined between the front and rear rotational axes and a vertically-extending centerline of the vehicle extends vertically at the midpoint of the wheel base and is perpendicular to the longitudinally-extending centerline. The vehicle also includes a fuel tank, an airbox assembly, and a battery all positioned relative to the vertically-extending centerline of the vehicle.

Abstract: A two-wheeled vehicle includes a frame, a plurality of ground-engaging members for supporting the frame, and an engine supported by the frame and operably coupled to the ground-engaging members. Additionally, the two-wheeled vehicle includes a windshield assembly operably coupled to the frame and an adjustment member operably coupled to the windshield assembly. A vehicle control unit is operably coupled to the adjustment member and is configured to automatically actuate the adjustment member for adjusting the position of the windshield assembly.

Abstract: A two-wheeled vehicle includes a frame, a plurality of ground-engaging members for supporting the frame, and an engine supported by the frame and operably coupled to the ground-engaging members. Additionally, the two-wheeled vehicle includes a windshield assembly operably coupled to the frame and an adjustment member operably coupled to the windshield assembly. A vehicle control unit is operably coupled to the adjustment member and is configured to automatically actuate the adjustment member for adjusting the position of the windshield assembly.

Abstract: A catalytic muffler includes a housing having an inlet, an outlet, and a plurality of catalyst coated serially stacked perforated cups through which exhaust flows and is acoustically attenuated and catalyzed.

Abstract: A screen-type spark arrestor (34) may be efficiently and compactly mounted in a muffler (10). A tubular screen is coaxial with an exhaust pipe (24) and has a first end (36) axially spaced from the pipe and star-crimped closed, and a second end (38) axially overlapping the pipe in concentric relation and crimped thereto by a crimp ring (40). The combination is mounted as a modular component by a flange (22) closing the muffler housing (12).

Abstract: A muffler (20) is provided by upstream and downstream outer shells (28 and 30) and a single sole internal baffle (32 or 110 or 120), all three of which are joined to each other around an outer peripheral edge (34). The internal baffle defines a first chamber (36) between the internal baffle and the upstream outer shell. The internal baffle has an extension portion (38) extending away from the upstream outer shell and toward and into the downstream outer shell and forming second and third chambers (40 and 42) between the internal baffle and the downstream outer shell and forming multiple sound attenuating tubed passages (44 and 46, 114, 124 and 128) bounded by the downstream outer shell and the extension portion and connecting the second and third chambers on distally opposite ends (48 and 50) of the extension portion. The baffle has an opening (52) therethrough adjacent the extension portion and connecting the first and second chambers.

Abstract: A muffler includes an upstream outer shell, a downstream outer shell, and identical upstream and downstream inner baffles forming in combination an upstream expansion chamber, an inner expansion chamber, and a downstream expansion chamber. The upstream and downstream inner baffles divide the inner expansion chamber therebetween into a main chamber and first and second laterally spaced subchambers. The upstream and downstream inner baffles have respective sets of apertures therethrough laterally offset from each other and aligned with respective subchambers and communicating exhaust from the upstream expansion chamber through the set of apertures in the upstream inner baffle into the first subchamber and then flowing laterally through the main chamber to the second subchamber and then flowing through the second set of apertures into the downstream expansion chamber.

Abstract: A muffler (12) has first and second outer shell members (14 and 16), and first and second inner baffle members (18 and 20). The inner baffle members are identical to each other and parallel to each other and rotated 180.degree. relative to each other about an axis (22) perpendicular to such parallel extension. The baffle members have oppositely facing laterally offset formed expansion chambers (32 and 34) partially overlapped to provide exhaust flow communication therebetween. The structural combination enables usage of identical components (18 and 20), which improves manufacturing efficiency and provides a cost reduction.