R3r three-wheel vehicle and concentric intermediate sprocket...
Rear derailleur for bicycle
Rear derailleur with a shock absorber disposed between a...
Rear drive assembly for a snow bicycle
Recumbent cycle with a single stroke linear pedaling system
Reversible drive device for bicycles
Ride-on vehicle with direction responsive mechanism
Riding-type vehicle
Rotary drive mechanism
Runner shoe for snowmobile
Runner shoe for snowmobile runners
Running gear for converting a wheeled vehicle for snow...