Assertion: moped's engine | /r/CapableOf | stop assisting the rider
Facets:
Source sentences:
text: A class 1 electric bicycle is a bicycle with pedals whose electric motor only provides assistance to the rider when using the pedals and stops assisting when the bicycle reaches 20mph; a class 2 electric bicycle is a bicycle with pedals whose motor can drive the bicycle entirely on its own, but will not assist the rider above 20mph; a class 3 electric bicycle is identical to a class 1 electric bicycle, but is capable of traveling up 28mph before the engine stops assisting the rider AND is equipped with a speedometer.