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BionX is a Canadian maker of electric motors for bicycles. Its first motors in the early 2000s, while still named EPS (Electric Propulsion Systems) , were kits for retrofitting . On February 27, 2018 BionX Canada went into receivership, all 80 employees were let go and the company was shut down temporarily to find a buyer. Grant Thornton Limited was appointed as Receiver.
In 2008, it was acquired by Magna  and by then its motors had become standard parts in many ebikes. Today, bike makers in Europe and North America  like Trek, Matra, Wheeler, Kalkhoff, and others use BionX motors.
In 2011, SeaScape, an electrically-assisted paddle-boat product line was introduced.
BionX was headquartered in Aurora, Ontario where motors are produced and assembled  before being sold locally or being shipped to over 15 countries. Research and development was based in Sherbrooke, Quebec . The European sales and service center is located near Munich, Germany .
Typically, BionX motors are rear wheel motors characterized by low noise and the possibility to charge the battery during braking or downhill riding .
The BionX electric bicycle wheel hub motors have certain innovative characteristics, often not found on similar hub motor products, including having the motor controller embedded within the hub itself and integrated regenerative braking abilities that allow the batteries to be partially recharged when riding downhill.
The D series of motors was the latest and strongest BionX technology with a torque of 25/50 Nm. The motor cylinder is much larger but thinner than in previous versions and weighs 4.0 kg (8.8 lb). Before that was the S series which with 3.5 kg (7.7 lb) was lighter than the P series at the same strength. The P series motors were the first produced by Bionx. They have a torque of 9/40 Nm at a weight of 4.7 kg (10.4 lb). 
|D-500||500W (NA), 250W (EU)||48V||4.08 kg||2015|||
|S-350||350W (NA)||48V||4.08 kg||2014|||
|P-350||350W (NA), 250W (EU)||36V||4.7 kg||2014|||
|SL-350||350W (NA)||48V||4.3 kg||2013|||
|PL-350||350W (NA)||37V||4.3 kg||2013|||
|PL-250||250W (NA)||26V||4.3 kg||2013|||
*Since the maximum legal power specifications in Watts are different for the same motor in North America and Europe, the name varies. For example, the P-350 is usually sold as the P-250 in Europe.
- Vanderpool, Val (2018-03-02). "BionX shuts down as it searched for a new owner". bicycleretailer.com. Retrieved 2018-03-03.
- "Bionx Canada Inc. - Important Information for Creditors". grantthornton.ca. 2018-02-27. Retrieved 2018-03-03.
- "BionX Canada Sells Parts of its Business". BicycleRetailer.com. 2018-06-21. Retrieved 2018-09-03.
- "BionX Auction Catalog". bidspotter.com. 2018-08-15. Retrieved 2018-09-03.
- "BionX Timeline". ElectricBike.com. 2018-03-27. Retrieved 2018-09-03.
|Wikimedia Commons has media related to BionX.|
- ridebionx.com – BionX company homepage