POWER ASSIST

I. WHAT IS MEANT BY "POWER ASSIST"?
A power assist is any vehicle with any number of wheels that is primarily or partly human powered, and assisted by a small motor. Power assist enthusiasts are typically interested in simple human-scaled transportation that is earth-friendly and fun. Transportation that either extends the range of their bicycling, allows them to arrive at work without needing a shower, or allows them to leave the car at home more often.