70224 ⎘
Rider propulsion of wheeled vehicles with additional source of power, e.g. combustion engine or electric motor; Rider propelled cycles with auxiliary combustion engine power-driven at crank shaft parts
Bicycle having electric drive with power distribution
#2Bicycle having electric drive or auxiliary drive
#3Transmission assembly featuring one-way needle bearings for engine- and human-powered vehicles
#4Thermal assistance for bicycle
#5POWER ASSIST SYSTEM AND METHOD FOR A VEHICLE
#6Thermal assistance for bicycle
#7Thermal assistance for bicycle
#8Power assist system and method for a vehicle