A method and system for assembling a vehicle of a family of vehicles includes providing a group of engines. A first engine including a first number of cylinders corresponds to a first vehicle. A second engine including a second number of cylinders corresponds to a second vehicle. The second number is greater than the first number which is at least one. A cylinder plane extends vertically and longitudinally. At least one cylinder is disposed at least partly forward of a front wheel plane. The transmission assembly is rearward of the selected engine and one of the transmission assembly and the selected engine is in a same location whether the selected engine is the first or the second. The seat is at least in part longitudinally rearward of the transmission assembly. The selected engine is laterally disposed between the centers of the footrests.

A footrest mount plate attachable to a swingarm mounting location on a motorcycle frame includes an inner surface protrusion that fits closely within the swingarm mounting bore, and an outer surface configured for attaching a footrest assembly.

A footrest mount plate attachable to a swingarm mounting location on a motorcycle frame includes an inner surface protrusion that fits closely within the swingarm mounting bore, and an outer surface configured for attaching a footrest assembly.

The present disclosure provides a foot-deck device and a vehicle. The foot-deck device includes: a bracket; two deck assemblies oppositely disposed on the bracket, the two deck assemblies each including a deck and a rotating shaft, the rotating shafts being pivotally disposed on the bracket, and the decks being disposed on the rotating shafts; and a linkage mechanism, the rotating shaft of one deck assembly being coupled to the rotating shaft of the other deck assembly through the linkage mechanism, the linkage mechanism being used to cause the rotating shafts of the two deck assemblies to rotate synchronously and cause the decks of the two deck assemblies to rotate synchronously to respective folded positions or unfolded positions.

The present disclosure provides a foot-deck device and a vehicle. The foot-deck device includes: a bracket; two deck assemblies oppositely disposed on the bracket, the two deck assemblies each including a deck and a rotating shaft, the rotating shafts being pivotally disposed on the bracket, and the decks being disposed on the rotating shafts; and a linkage mechanism, the rotating shaft of one deck assembly being coupled to the rotating shaft of the other deck assembly through the linkage mechanism, the linkage mechanism being used to cause the rotating shafts of the two deck assemblies to rotate synchronously and cause the decks of the two deck assemblies to rotate synchronously to respective folded positions or unfolded positions.

A motorcycle footrest mount is attachable to a motorcycle adjacent an engine of the motorcycle where a motorcycle frame includes a mount or attaching a crash bar to the motorcycle frame. The footrest mount includes a body that connects to the motorcycle frame mount and a clam shell clamp that connects to a portion of the crash bar. A mounting arm connected to the body carries an adjustable mounting member that is configured to mount a footrest assembly.

A motorcycle footrest mount is attachable to a motorcycle adjacent an engine of the motorcycle where a motorcycle frame includes a mount or attaching a crash bar to the motorcycle frame. The footrest mount includes a body that connects to the motorcycle frame mount and a clam shell clamp that connects to a portion of the crash bar. A mounting arm connected to the body carries an adjustable mounting member that is configured to mount a footrest assembly.

A vehicle propellable by a human comprising a front assembly having a front wheel and a pair of hand pedals connect thereto; a rear assembly having a first rear wheel and a second rear wheel rotatably connected thereto; a chest rest located between the front assembly and the rear assembly, the chest rest configured to support the chest of a rider lying forward on the vehicle; and a first foot support structure operatively coupled to rotate the first rear wheel, and a second foot support operatively coupled to rotate the second rear wheel wherein the first rear wheel and second rear wheel are independently rotated by opposite feet of a rider when said feet are within said first and second foot support, respectively.

A footrest mount adapter includes a planar body with an upper portion and a lower portion extending at an angle relative to the upper portion. A mounting flange extends from a rear surface of the upper portion of the body for connecting the adapter to a pivot bracket on a motorcycle. The lower portion includes a footrest mount on a front surface for mounting a footrest.

A footrest mount adapter includes a planar body with an upper portion and a lower portion extending at an angle relative to the upper portion. A mounting flange extends from a rear surface of the upper portion of the body for connecting the adapter to a pivot bracket on a motorcycle. The lower portion includes a footrest mount on a front surface for mounting a footrest.