⚡ Easy Installation | Install in 60 Minutes, Ride in No Time.

How Do I Know If the BBS02B 48V750W68mm Fits My Bike?

📏 Check Your Bottom Bracket

Use calipers to measure:

✅ Length: 68mm BB size: Fits standard 68–73mm bottom brackets with 34–36mm inner diameter

✅ Length: 100mm BB size: Fits standard 89–105mm bottom brackets with 34–36mm inner diameter.

(Pls contact us for the spacers for not 100mm BB motor )

🚲 Compatible With:

Mountain bikes | Road bikes | Most city bikes

⚠️ Frame Clearance Note

On smaller or unique frames, check that the chainring does not contact the rear frame.

🖥️ LCD Display — Your Smart Ride Companion

Turn every ride into an informed experience — with Bafang motor at your fingertips.

🔧 BRAKE SYSTEM OPTIONS | Safety Tailored for Your E-Bike

📊 Quick Comparison

Feature                        | Brake Lever     |  Brake Sensor

Motor Cutoff             |   ✅ Built-in      |   ✅ Add-on

Install Type                 | Replace lever   |   Attach to existing lever

Brake Compatibility  | Mechanical only| Hydraulic & Mechanical

🎯 How to Choose

Choose the Brake Lever if: You’re building a new e-bike or want a clean, all-in-one setup.

Choose the Brake Sensor if: You already like your current brakes (especially hydraulic) and just need the cutoff function.

Both options provide reliable motor cutoff — it’s about how you want to integrate it into your ride.

📦 What‘s In the Box — BBS02B 750W Mid-Drive Kit

1 × 48V 750W Mid-Drive Motor

1 × Thumb Throttle

1 × Speed Sensor

1 × 4-in-1 EB-BUS Cable

1 × Display (optional)

1 Pair × Crank Arms

1 × Chainwheel *(44T default | 36T/42T)*

1 Pair × Brake Levers or brake sensors

1 × 6V Front Light

1 × Installation Wrench Set

1 × Crank Removal Tool

1 × 36V 250W Stickers

1 × Cable Ties Bundle

1 × User Manual