
Nylon helical gear exclusively for BAFANG M820 & G532 mid drive motors. Pre-fitted with dual 608 bearings, 81g lightweight design, direct replacement for worn gears, ideal for e-bike mid motor repair and rebuild.
✅ BAFANG M820 Mid Drive Motor
✅ BAFANG G532 Mid Drive Motor
Note: This gear only fits Bafang M820 / G532 mid motor models. Please confirm your motor model before ordering to avoid mismatching.
✅ Perfect Fit for BAFANG M820 & G532 Mid Motors
Precision molded helical nylon gear made exclusively for BAFANG M820 and G532 mid motors. Matches original tooth geometry for seamless assembly and consistent reliable performance on electric bikes. Great for motor maintenance, component upgrade and worn part replacement.
✅ Built-in Dual 608 Bearings
The gear assembly comes pre-installed with two 608 bearings. Ready for direct installation without extra bearing purchase, saves repair time for DIY builders and bike service shops.
✅ Wear-resistant Helical Nylon Construction
High toughness nylon material absorbs impact and reduces running noise during operation. The helical tooth design distributes load evenly, lowering gear wear and extending motor service life under continuous riding load.
Product Name: M820 G532 Mid Motor Nylon Gear
Fit Motor: BAFANG M820, G532 mid drive motor
Material: High-strength Nylon
Bearings: Dual 608 bearings
Dimension: 39.5mm × 38.6mm
Net Weight: 81g
Please verify your motor model is Bafang M820 or G532 before purchase.
Minor color difference may exist due to lighting and screen display.
Allow slight manual measurement deviation for dimension data.
Only the nylon gear assembly is included; other motor components shown in reference images are not contained in the package.


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.

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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.
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