Derailleur Gear Sensor for Bafang Mid-Drive Motor BBS01 / BBS02 / BBSHD

Essential accessory to protect your drivetrain – Compatible with the entire Bafang BBS range

 Product Description

This Bafang derailleur gear sensor is specially designed for BBS01, BBS02, and BBSHD mid-drive motors.
It automatically cuts off motor power during gear shifting, helping to preserve your drivetrain, reduce mechanical stress, and extend the lifespan of components like the chain, cassette, and derailleur.

Motor Compatibility

• ✅ Bafang BBS01

• ✅ Bafang BBS02

• ✅ Bafang BBSHD

• ✅ Bafang MaxDrive (optional compatibility)

How It Works & Installation

• ???? Cable length: 40 cm

• The sensor simply plugs into one of the brake cutoff connectors on your controller.

• The gear cable is routed through the sensor, which detects tension during shifting.

• When a gear change is detected, the sensor briefly disables motor assistance, allowing a smooth shift.

 Why Use a Bafang Gear Sensor?

•  Mechanical safety: Prevents shifting under motor load.

•  Drivetrain protection: Reduces premature wear on your chain and cassette.

•  Smoother ride: Silent, shock-free gear transitions.

 Perfect for:

• Riders using high-power motors like BBS02 and BBSHD

• Sporty use or cargo bikes

• Anyone looking to protect their Bafang-powered e-bike long-term

Included:

• 1 x Bafang derailleur sensor – 40 cm cable

How it works ?