Custom E-bike Build: Specialized M-4 Bafang BBS02 Mid Drive

www.johnnynerdout.com Bike: Specialized M4 Motor: Bafang BBS02 Mid Drive https://www.johnnynerdout.com/product... Battery: 52v 14ah https://www.johnnynerdout.com/product... Gear Shift Sensor https://www.johnnynerdout.com/product...