Wikipedia
BionX is a Canadian maker of electric motors for bicycles. Its first motors in the early 2000s, while still named EPS (Electric Propulsion Systems) 1, were kits for retrofitting 2. In 2008, it was acquired by Magna 3 and by then its motors had become standard parts in many ebikes. Today, bike makers in Europe and North America 4 like Trek, Matra, Wheeler, Kalkhoff, and others use BionX motors.
BionX is headquartered in Aurora, Ontario where motors are produced and assembled 5 before being sold locally or being shipped to over 15 countries. Research and development is based in Sherbrooke, Quebec 6. The European sales and service center is located near Munich, Germany 7.
Typically, BionX motors are rear wheel motors characterized by low noise and the possibility to charge the battery during breaking or downhill riding 8.