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BBS02 750W Mid-Drive Conversion Kit

BBS02 750W Mid-Drive Conversion Kit

The market's best-selling mid-drive conversion — a Bafang BBS02 750W bottom-bracket motor with 120 N·m of torque that drives through your bike's gears.

  • Bafang BBS02 mid-drive, 750W nominal / 1200W peak
  • 120 N·m torque — climbs steep hills with ease
  • Drives through the cassette for efficiency and range
  • Fits standard 68/73mm bottom brackets (100mm fat option)
  • Color display, thumb throttle and pedal-assist sensor

Specifications

Motor type
Mid-drive
Motor power
750W (1200W peak)
Voltage
48V
Torque
120 N·m
Battery
48V · 696Wh
Top speed
45 km/h
Wheel sizes
26" · 27.5" · 700c
Bottom bracket
68/73mm (100mm fat-bike option)
Compliance
US <750W

The BBS02 750W mid-drive is widely regarded as the most popular e-bike conversion kit on the market. Mounted at the bottom bracket, it powers the chain directly, so it uses your bike’s gears to stay in its efficient RPM band on any gradient.

Why it’s the best-seller

  • Torque where it counts: 120 N·m makes light work of hills and cargo loads.
  • Range advantage: because it leverages your drivetrain, it draws less current than a hub motor on demanding rides.
  • Wide compatibility: standard 68/73mm bottom bracket, with a 100mm version for fat bikes.

Pair it with a 48V Phylion battery for a complete, wholesale-ready package — request a quote for volume pricing.