- No. 43, Yushan Road, Huqiu District, Suzhou City, Jiangsu Province, China
- +8613671928471
- dafuli01@ebikeserviceparts.com
Precision 9T helical nylon gear exclusively for BAFANG M420 G332 mid-mounted motors. Pre-assembled with 16001 &16002 bearings, 195g, direct original replacement, wear-resistant for e-bike motor repair.
Note: This gear only fits Bafang M420 / G332 mid motor models. Please confirm your motor model before ordering to avoid mismatching.
Specially engineered for Bafang M420 G332 mid-mounted motor systems. The tooth profile and shaft spline match original specifications precisely, ensuring seamless assembly and reliable power performance. Great for e-bike repair and DIY motor rebuild.
Adopts premium nylon raw material, featuring outstanding wear resistance, impact buffer and low-noise transmission. The helical tooth design evenly distributes torque load, reducing gear abrasion during long rides and extending motor service life under tough riding conditions.
Comes pre-installed with 16001 and 16002 bearings. 9T spline design, dimension: 51.5mm outer diameter, width 20.5mm. Ready for direct installation without extra bearing purchase, saving maintenance time for bike shops and e-bike enthusiasts.
It can directly replace the original gear without any modification. Keep the original power transmission efficiency and quiet running performance of your M420 G332 mid motor.
Fit Motor: BAFANG M420 G332 Mid-Mounted Motor
Tooth: 9T
Bearings: 16001 & 16002
Dimension: 51.5mm (Diameter), 20.5mm (Width)
Material: High-strength Nylon
Net Weight: 195g
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.
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.
