Bafang M500 G520 250W Torque Sensing Mid Drive Motor Kit with DPC240 Display, CAN Bus Ebike Conversion Kit, 170mm Crank, Multiple Chainring Options for Mountain E‑bike

Bafang M500 G520 250W Torque‑Sensing Mid‑Drive Motor Kit for E‑Bike Retrofit

This full‑set mid‑mount conversion kit adopts the Bafang M500 G520 torque‑sensing motor, delivering natural pedal‑assist performance through CAN‑EBUS communication. Matched with the DPC240 dashboard, it supports real‑time riding data readout. Multiple optional chainrings and motor guards are available, ideal for upgrading mountain, hybrid, and commuter bicycles into electric bikes.

The motor delivers 250W rated power and 95Nm maximum torque, compatible with 36V / 43V / 48V battery systems. It features IP65 dust and water resistance, CE certification, compact lightweight design (motor unit 3.4kg), built‑in torque & speed dual sensor for responsive pedal assistBAFANG.

Compatibility

✅ Battery voltage: 36V / 43V / 48V

✅ Wheel size: 26” / 27.5” / 29”

✅ Suitable for standard frame mountain bikes, hybrid bikes & commuter bicycles

✅ Two motor variants available: Frame A and Frame B

✅ Optional chainring: 32T / 34T / 36T / 38T / 40T

✅ Optional motor guard: G520A / G520B

Precise Dimensions & Core Parameters

Package Includes

1 × Bafang M500 250W G520 Mid‑Drive Motor

1 × DPC240 Display

1 × Chainring (optional: 32T / 34T / 36T / 38T / 40T)

1 set × Motor Guard (optional: G520A / G520B) 1 pair × 170mm Crank Arms

1 × Thumb Throttle 1 set × EB‑BUS Connection Harness

1 set × Speed Sensor Assembly

1 × Power Cable (A‑type / B‑type optional)

Please confirm Frame A or Frame B and power cable version before ordering.

Key Features

✅ Accurate Torque & Speed Sensing: Real‑time detection of pedaling force, outputs matched assist power for natural, smooth riding experience.

✅ Stable CAN EB‑BUS System: Reliable data transmission among motor, display and sensors for fast response and stable system operation.

✅ DPC240 Multi‑Function Display: Real‑time monitoring of speed, battery level, assist level and core riding data.

✅ IP65 Dust & Water Resistance: Good dust‑proof and water‑proof performance, adapts to rainy weather and complex road conditions for daily commuting and trail riding.

✅ Multiple Customizable Options: Selectable chainring and motor guard to satisfy different gear‑ratio and frame‑installation requirements.

✅ Wide Compatibility: Works with 36V/43V/48V battery packs and mainstream 26″‑29″ bicycle frames.

✅ CE‑Certified Brushless Motor: Reliable construction, low wear, low maintenance requirement.

✅ Complete All‑in‑one Kit: Comes with all required cables, sensor, throttle and cranks for convenient installation.

Specifications

• Brand: Bafang
• Product Name: M500 G520 Torque‑Sensing Mid‑Drive Motor Kit
• Rated Power: 250W
• Max Torque: 95Nm
• Motor Weight: 3.4kg
• Working Voltage: 36V / 43V / 48V
• Protocol: CAN EB‑BUS
• Display: DPC240
• Crank Arm: 170mm
• Optional Chainring: 32T, 34T, 36T, 38T, 40T
• Optional Guard: G520A, G520B
• Applicable Wheel: 26″, 27.5″, 29″
• Certification: CE
• IP Rating: IP65
• Motor Type: Brushless Mid‑Mount Motor
• Variant: Frame A / Frame B
• Motor Width: 159mm
• Motor Height: 125mm
• Installation Thickness: 46mm
• Max Installation Diameter: 124.8mm
• Max Pedal Cadence: 120 rpm
• Assist Limit Speed: 25 km/h
• Operating Temperature: -20℃ ~ 45℃
• Storage Temperature: -25℃ ~ 50℃
• Package: Full conversion kit as listed in package contents

Important Notes

• Please confirm whether you need Frame A or Frame B before placing the order to avoid installation mismatch.
• Select proper chainring and motor guard according to your frame type and riding scenario.
• Minor color differences may appear due to lighting conditions and screen display variations.
• Allow mechanical measurement tolerance.
• Only items listed in Package Includes are covered; other demo accessories in reference pictures are not included.
• Motor dimensions are reference values; please verify with physical product during installation.

Ideal upgrade kit for DIY e‑bike builders, bike repair shops and wholesale distributors. Convert ordinary bicycles into high‑performance assisted e‑bikes with this all‑in‑one mid‑drive system.