- No. 43, Yushan Road, Huqiu District, Suzhou City, Jiangsu Province, China
- +8613671928471
- dafuli01@ebikeserviceparts.com
Heavy-duty steel reduction gear for Bafang BBS01B, BBS02B and BBSHD mid-drive e-bike motors. Precision machined for perfect fit, reliable power transmission for ebike motor overhaul. Direct replacement for worn or damaged original gears.
✅ Fits: Bafang BBS01B, BBS02B, BBSHD mid-drive motors
❌ NOT compatible: Bafang M-series (M210/M410/M500/M600/M800/M810/M820) or other non-BBS mid motors
✅ Hardened High-Quality Steel: Strong anti-wear performance, far longer service life than stock plastic gears.
✅ Precision CNC Machining: Exact tooth profile & spline dimension, seamless fit, no modification required.
✅ Stable Power Transmission: Smooth gear meshing, reduces noise and gear skipping under heavy load.
✅ Direct OEM Replacement: Perfect drop-in part for BBS01B / BBS02B / BBSHD motor maintenance and overhaul.
✅ Heavy Load Resistance: Designed for high torque ebike applications, ideal for mountain & cargo ebikes.
Product Name: BBS Series Steel Reduction Gear
Applicable Motor: Bafang BBS01B, BBS02B, BBSHD Mid-Drive Motor
Material: Hardened Alloy Steel
Process: CNC Machined, Tooth Hardened
Application: E-bike mid motor transmission rebuild & replacement
⚠️ This gear only fits Bafang BBS01B, BBS02B, BBSHD mid motors. It will NOT work with Bafang M-series mid drive motors.
⚠️ Please confirm your motor model before purchase. Wrong part will cause fitting failure.
⚠️ Professional ebike mechanic installation is recommended. Check bearing and gear lubrication during motor assembly.
⚠️ Only steel gear included. Motor housing, crank, controller and other components are NOT included.
We specialize in mid-drive motors and e-bike parts. Strict testing, powerful R&D and flexible OEM service guarantee long-term cooperation.
It used to take me weeks to hunt down hard‑to‑find e‑bike spare parts. Their compatibility‑check technical support saved me countless repair headaches. Reliable supplier I can always count on.
For more FAQs and further details, please get in touch with us
We supply genuine OEM parts and premium compatible aftermarket replacement parts for e-bikes, including motor components, controllers, throttles, PAS sensors, wiring harnesses, connectors and Bosch form-factor batteries.
We serve mainstream drive system manufacturers: Ananda, Bafang, Aikema, Tongsheng, Shengyi, Bosch and more. We also provide repair components for complete e-bike brands including Sur‑Ron, Aventon, Trek and many others.
All items are brand-new and inspected before shipment. We do not supply second-hand or refurbished goods.
Our team verifies compatibility according to your bike model, motor info or original part photos. We confirm available OEM parts or recommend workable alternative solutions.
Yes. Flexible order sizes are supported, ranging from single spare parts to bulk purchases.
Sea freight, air freight and rail transport are optional.
Lead time varies by item and shipping mode. We confirm exact timelines before each order and share tracking updates.
We provide part identification, model matching and full order follow-up support.
