BAFANG BBS02B 48V750W 68mm/100mm Mid-Drive Motor Kit （CAN PROTOCOL）
Convert your bike into a powerful, smart e-bike — easily and reliably.
🔧 What Makes It Great
Smooth & Powerful – Delivers strong, consistent torque for climbing and acceleration.
Easy Installation – Comes with a step-by-step video guide. Fits most mountain, road, and city bikes.
Versatile Riding – Switch between effortless cruising, fitness support, or traditional pedaling
✅ Key Features
Feature Description
Power & Torque: 750W motor ‧ 120 N.m max torque ‧ Ideal for hills, trails, and fast commuting
Compatibility: Fits standard 68–73mm bottom brackets with 34–36mm inner diameter
Riding Modes: 3 modes: Full Electric ‧ Pedal Assist ‧ Manual Pedaling
Battery Safety: Integrated BMS with over-charge/discharge, short-circuit, and over-current protection
Speed & Range: Up to 55 km/h (with 27.5″ wheel)
Design: Compact ‧ Quiet ‧ Harmonious integration with most bike frames
🚴 Perfect For
Daily commuters looking to skip traffic
Adventure riders tackling hills and trails
Seniors or anyone wanting extra pedal support
DIY enthusiasts building a custom e-bike
⚡ Easy Installation | Install in 120 Minutes, Ride in No Time.
How Do I Know If the BBS02B 48V750W Fits My Bike?
📏 Check Your Bottom Bracket
Use calipers to measure:
✅ Length: 68mm size fits for 68-73mm bottom bracket , 100mm size fits for 89-105mm bottom bracket. ( The spacer is not included by default. If needed for your installation, please let us know when placing your order.)
✅ Inner Diameter: 34–36mm
🚲 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 — Mid-Drive Kit
1 × 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
1 Pair × Brake Levers OR brake sensors
1 × Front Light
1 × Installation Wrench Set
1 × Crank Removal Tool
1 × 36V 250W Sticker
1 × Cable Ties Bundle
1 × User Manual
This motor kit does not include a battery.
✅ Battery is optional and sold separately
✅ We recommend ordering it together with your kit.
✅ Choose from various capacities and mounting styles in our store.
🔍 Frequently Asked Questions (FAQ)
🖥️ Q1: How to choose a display?
Displays vary in interface, screen size, mounting style, and functions.
BAFANG Display: BAFANG DPC080|BAFANG DPC010
Cost Effective: VD03|VD618
Popular Displays: EKD01 (Multi-Language)|VD04
📌 Select based on your needs: Bluetooth connectivity, screen clarity, or budget.
⚙️ Q2: Which chainring for 750W motor should I pick?
Choose based on your riding style:
Smaller Chainring (e.g., 36T)
→ Better for climbing & mountain biking
Larger Chainring (e.g., 42T)
→ Higher top speed for city/road/folding bikes
🔄 You can change the chainring later — just let us know your preference when ordering.
🔋 Q3: Is a battery included?
— No, this kit does not include a battery.
✅ Battery is optional
✅ We recommend ordering it together with your kit.
✅ Choose from various capacities and mounting styles in our store.
🔌 Need help selecting the right battery? Contact us for a personalized recommendation.
❓ Still have questions?
We’re here to help — just send us a message!