The BAFANG BBS02B is a mid-drive e-bike conversion kit built around the M315 G340.500.C motor. It drives through the bike's cranks and gears, so it climbs better than a hub motor of the same rating and keeps weight low and centered. The 36V 500W version suits commuters and casual riders who want pedal assist plus a throttle on a 20 to 29 inch wheel bike. Against hub kits it is more involved to install and needs a compatible battery, but it is the established choice for a geared mid-drive conversion.
In stock
Lowest price we've seen: $387.00 on Nov 12 at Varstrom. Tracked across 1 store since Nov 12.
Riders rate the BBS02B highly, praising its power and smooth pedal assist on converted commuter bikes. Complaints center on installation effort and the need to source a matching battery.
This is the BAFANG BBS02B mid-drive motor, model MM G340.500.C, for converting a bicycle to an e-bike. It mounts at the bottom bracket and has a 36 V nominal voltage and 500 W rated power. It works with wheel sizes from 20 to 29 inches.
The motor supports pedal assist, using a cadence sensor, and throttle mode. It also supports e-brake levers. The speed limit is 32 km/h, and the maximum effective torque is 100 N.m.
