For people who wouldn’t otherwise ride a bike, or who don’t want to arrive at work all hot and sweaty, electric-assist bicycles are a neat idea. Commonly referred to as pedelecs (for “pedal-electric”), they use an electric motor to augment the rider’s own body strength while pedaling, yet that motor can usually be switched off when they don’t need it. The only problem with that setup ... even when the motor isn’t being used, it and its battery are still there, weighing the bike down. For his prototype Velocity pedelec, however, Taiwanese designer Larry Chen came up with a creative solution – an easily-removable motor/battery unit. It was enough to win him a gold award at the latest International Bicycle Design Competition in Taiwan.
Read the full article: Velocity e-bike features weight-reducing removable power system