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- dafuli01@ebikeserviceparts.com
This 130BCD chainring spider adapter is precision engineered for Bafang mid‑drive motors. Made from high‑strength aluminum alloy, it delivers rigid and reliable mounting for your chainring, ensuring stable power transfer during riding. It is an ideal replacement and retrofit part for custom e‑bike builds, motor upgrades and chainring modification.
✅ Perfect fit for Bafang mid drive motors:
✅ Works with 130BCD standard chainrings for e‑bike mid motor systems
✅ For e‑bike DIY conversion, replacement and upgrade projects
| Parameter | Value |
|---|---|
| Product Name | 130BCD Chainring Spider / Chainring Adapter |
| BCD | 130MM |
| Material | Aluminum Alloy |
| Color | Black |
| Design | 5‑arm spider structure |
| Application | Chainring mounting for Bafang mid‑drive motor |
| Tolerance | Measurement allowed error +/-1‑3cm |
1 × Chainring Spider / Chainring Adapter
Only the above package content, other products are not included.
✅ Precision Machined for Perfect Fit: CNC machined adapter spider, precisely matched to Bafang BBSHD, G320, M615(MM G320.750/1000.C), M625(MM G321.750/1000.C) mid motor. Achieves secure and tight connection between motor and chainring, guarantees reliable power transmission.
✅ High Strength Aluminum Alloy Construction: Lightweight yet robust aluminum alloy material, great load capacity and anti‑deformation performance, long service life under continuous torque output.
✅ 130BCD Standard Specification: Standard 130 BCD mounting interface, compatible with most 130BCD bicycle / e‑bike chainrings, supports flexible chainring upgrade options for your mid‑drive ebike.
✅ Surface Anti‑corrosion Finish: Black surface treatment, anti‑rust and wear‑resistant, adapts to outdoor riding environments.
✅ Easy Installation: Direct replacement spider for original setups, simple assembly for e‑bike repair shops and DIY builders.
Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1‑3cm. This adapter only works with matching Bafang mid motors and 130BCD chainrings. Please double‑check your motor model (M615=MM G320.750/1000.C; M625=MM G321.750/1000.C) and chainring BCD before purchase. Chainring, crank arm and other e‑bike components shown on reference images are NOT included.
Ideal spare part for e‑bike repair stores, DIY retrofit enthusiasts and ebike wholesale distributors. Great solution for Bafang mid motor chainring replacement and custom chainring upgrades.
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.
