Electric Bike Conversion Kit

Karl Gesslein / August 8, 2015 The Biktrix 100mm kit is a BBS02 with these parts already fitted and installed to fit a 100mm fat-bike bottom bracket. I took one apart and I can attest that their logo really is printed on the axle. I’ve been a fan of the Canadian company Biktrix since they completed their first kickstarter for the Juggernaut BBS02 powered 750W fatbike in November of 2014. While several other ebike crowd-funding campaigns have made gross exaggerations about the capabilities of their bikes, the Biktrix crew seemed knowledgeable and honest from the start. Their interest in the BBS02 didn’t stop with just funding,...

Karl Gesslein / January 13, 2015 After much anticipation I purchased the new tap kit and 3 axle kits from Doug at California E-bike. After doing my first BBS02 conversion I was not disappointed. The BBS02 is a fantastic drive unit and the 750W unit designed for the US market fits a wide range of 68-73mm Bottom bracket bikes. Since the bottom bracket is the strongest part of the frame there is no need for torque arms or reinforcing brackets. This unit is quiet and stealthy due to its small size and barely perceptible hum. The only drawback is the weak controller and...

Update: Bafang is selling a new 68-120mm BB BBS02 1000W drive unit which should be available soon. Check out this link for more info. In many ways the BBS02 is the king of mid drive units. Being the most affordable and easily installed on a wide variety of bike frames the BBS02 fails on many fronts when it comes to being installed on fatbikes. Most fatbikes have a much wider Bottom Bracket than the industry standard 68mm. Fat bike manufacturers have mostly standardized on the 100mm BB so the chainline can still not hit the tire in the lower gears. There is...

Update: Bafang is selling a new 68-120mm BB BBS02 1000W drive unit which should be available soon. Check out this link for more info. In many ways the BBS02 is the king of mid drive units. Being the most affordable and easily installed on a wide variety of bike frames the BBS02 fails on many fronts when it comes to being installed on fatbikes. Most fatbikes have a much wider Bottom Bracket than the industry standard 68mm. Fat bike manufacturers have mostly standardized on the 100mm BB so the chainline can still not hit the tire in the lower gears. There is...

Karl Gesslein / August 5, 2015 Bafang has finally decided that their P75NF75 mosfets on the 750 Watt BBS02 are grossly inadequate for the 1200 Watts that they allow to flow through the controller when it is cranked on. It sounds like they are now using the IRFB3077 mosfets which should run much cooler and be able to handle more amps for longer without popping like jiffypop over a bonfire. Under all that horrible-to-remove potting material lies newer cooler running mosfets with the latest BBS02 750W units. What does this mean to you the consumer? It means you can beat on that new BBS02 even...