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Bafang BBS01B (M215) 36V 250W Mid-Drive Conversion KitBafang BBS01B (M215) 36V 250W Mid-Drive Conversion Kit 2

Bafang BBS01B (M215) 36V 250W Mid-Drive Conversion Kit

Entry-level Bafang BBS01B bottom-bracket mid-drive kit: 250W rated, 80 N·m max torque, 25 km/h setting — sized for EU pedelec builds.

  • 250W rated Bafang M215 (MM G340.250.C) motor, 80 N·m max torque
  • 25 km/h speed-limit setting available (32 km/h optional)
  • Lightest BBS unit at 3.8 kg, controller integrated in the motor
  • Fits threaded bottom brackets 68–73 mm wide
  • UART or CAN version available: firmware is flashed to match the order
  • Display, brake cut-offs and speed sensor included; throttle optional
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Specifications

Motor type
Mid-drive
Motor power
250W
Voltage
36V
Torque
80 N·m
Top speed
25 km/h
Wheel sizes
20" · 24" · 26" · 27.5" · 28" · 29"
Bottom bracket
BB 68–73 mm wide, approx. 35 mm inner diameter
Compliance
250W rated, 25 km/h setting (EU pedelec class)

The BBS01B is the 250W version of Bafang’s bolt-on BBS mid-drive, listed by Bafang as the M215 (MM G340.250.C). Its rated power and 25 km/h limit option match the power class used for pedelecs in Europe, which makes it the natural BBS kit for German and French customers.

The motor mounts through a standard threaded bottom bracket and drives the bike’s own chain and gears. The controller is built into the motor, so the external parts are limited to the display, sensors and cabling. It can be ordered as a UART or a CAN version (the matching firmware is flashed per order), with a throttle as an option.

Specifications

ParameterValue
MotorBafang M215 / MM G340.250.C (BBS01B)
Motor weight3.8 kg
Pedal sensorCadence
ControllerIntegrated in motor, 15A current limit; UART or CAN firmware (flashed per order)
DisplayLCD display, UART or CAN to match the firmware (e.g. DP C10 CAN)
ThrottleOptional
CertificationsCE / RoHS / EN 14764
Battery compatibility36V Li-ion pack (battery not included)

Models & specifications

VariantVoltage
36V 250W, 68–73 mm BB36 V

What’s in the box

  • BBS01B motor with integrated controller
  • 1T4 motor cable (75 cm)
  • LCD display matching the firmware (UART or CAN; e.g. DP C10 CAN)
  • Throttle (optional)
  • Speed sensor and magnet
  • 2 × brake cut-offs (type of choice)
  • Left and right crank arms with 2 bolts
  • Chainring with plastic cover (size of choice)
  • Fixing plate and 2 × M33 nuts
  • M6 / M5 mounting bolts and ST3.9 screws
  • Manual

Highlights

  • EU-friendly power class: 250W rated with a 25 km/h speed-limit option.
  • Short install: The motor replaces the bottom bracket; no wheel rebuild is needed.
  • Light output: 6 V / 3 W headlight output from the motor.
  • Water resistance: Rated IP X5 by Bafang.

FAQ

Which battery voltage do I need?

The 36V version of this kit needs a 36V pack (Bafang also builds the motor for 48V).

Is a battery included?

No, the kit is supplied without a battery.

UART or CAN?

Both. The controller firmware is flashed to UART or CAN to match your order, and the display is supplied to match.

Is a throttle included?

A throttle is optional; tell us if you want it in the kit.

Wholesale, quote-only. Tell us your quantity, target market and required configuration (voltage, display, wheel size / BB width) and we will reply with a quotation.