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Bafang BBSHD 130BCD 40T Chain Wheel Sprocket, 7075 Aluminum Spider‑Steel Chainring Adapter for High‑Torque Mid‑Drive Ebike
Bafang BBSHD 130BCD 40T Chain Wheel Sprocket, 7075 Aluminum Spider‑Steel Chainring Adapter for High‑Torque Mid‑Drive Ebike - Image 2
Bafang BBSHD 130BCD 40T Chain Wheel Sprocket, 7075 Aluminum Spider‑Steel Chainring Adapter for High‑Torque Mid‑Drive Ebike - Image 3
Bafang BBSHD 130BCD 40T Chain Wheel Sprocket, 7075 Aluminum Spider‑Steel Chainring Adapter for High‑Torque Mid‑Drive Ebike - Image 4
Bafang BBSHD 130BCD 40T Chain Wheel Sprocket, 7075 Aluminum Spider‑Steel Chainring Adapter for High‑Torque Mid‑Drive Ebike - Image 5

Bafang BBSHD 130BCD 40T Chain Wheel Sprocket, 7075 Aluminum Spider‑Steel Chainring Adapter for High‑Torque Mid‑Drive Ebike

130BCD 40T chainring spider adapter for Bafang G320 BBSHD BBS03 mid‑drive motor. 7075‑Alu spider + steel chain wheel, compatible with 48V/52V high‑torque ebike systems, wide‑tooth anti‑drop design.

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130BCD 40T Chainring Spider Chain Ring Adapter for Bafang G320 BBSHD BBS03 Mid‑Drive Motor

This 130BCD chainring spider‑chain wheel assembly is engineered exclusively for Bafang G320, BBSHD and BBS03 mid‑drive motor kits. It achieves perfect drivetrain compatibility and stable reliable performance, well‑suited for high‑torque 48V and 52V e‑bikes for both city commuting and off‑road conditions.

Compatibility

✅ Bafang Mid‑Drive Motors: G320, BBSHD, BBS03

✅ Compatible System Voltage: 48V, 52V high‑torque e‑bike systems

Precise Specifications

ParameterValue
Product Name130BCD Chainring Spider & 40T Chain Wheel
BCD Standard130BCD
Spider Material7075 Aluminum Alloy
Chain Wheel MaterialSteel
Teeth Count40T
Key FeatureLarger wide‑tooth design, anti‑chain‑drop performance

Package Includes

1 × Bicycle Chain Wheel Assembly (Spider + 40T Steel Chainring)

Key Features

✅ Perfect Fit for BBSHD Series: Specially designed for Bafang G320, BBSHD and BBS03 mid‑drive motor kits for seamless drivetrain integration and dependable performance.
✅ Supports 48V /52V High‑Torque Systems: Works reliably under 48V and 52V high‑torque output, delivering steady power transmission for commuting and off‑road riding scenarios.
✅ Composite Heavy‑Duty Construction: Spider made of high‑strength 7075 aluminum alloy paired with durable steel chain wheel, excellent anti‑deformation and wear‑resistant performance under heavy load.
✅ Balanced 40T Gearing: 40‑tooth sprocket strikes great balance between speed and torque, ideal for urban commuting as well as off‑road e‑biking.
✅ Larger Wide‑Tooth Anti‑Drop Design: Optimized wide tooth profile improves durability and prevents chain drop during demanding rides.
✅ Multiple Specification Options: Various specs are available for selection to match your personal riding requirements.
✅ Direct‑Fit Replacement: Cost‑effective replacement accessory for worn‑out or damaged original chainring assemblies.

Specifications

Brand: Aftermarket spare part

Product Name: 130BCD Chainring Spider & 40T Chain Wheel

BCD:130BCD

Spider Material:7075 Aluminum Alloy

Chain Wheel Material:Steel

Teeth:40T

Compatible Motors: Bafang G320, BBSHD, BBS03 mid‑drive motor

Supported Voltage:48V, 52V

Feature: Wide‑tooth anti‑drop design, multiple specs optional

Color: As shown in the picture

Package:1 × Bicycle Chain Wheel Assembly

Important Notes

Please confirm your motor model is G320 / BBSHD / BBS03 before placing order to avoid fitting issues.
Minor color differences may appear due to lighting and screen display variations.
Slight dimensional tolerance exists due to manual measurement.
Only items listed in packing list are included; other accessories shown on reference photos are not contained.
Practical upgrade‑replacement spare for ebike repair workshops, DIY builders and wholesale distributors for high‑torque BBSHD‑series e‑bikes.
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We specialize in mid-drive motors and e-bike parts. Strict testing, powerful R&D and flexible OEM service guarantee long-term cooperation.

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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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Flexible mixed‑batch ordering is a game‑changer for my business. Low‑risk trial‑order options, fast delivery and solid OEM‑ODM service help me expand my product range with zero inventory pressure.

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We have been sourcing e‑bike components from them for over one year. Product quality is consistent, and their responsive after‑sales support makes our daily shop‑running much easier. Highly recommended.

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For more FAQs and further details, please get in touch with us

faqs

Frequently Asked Questions

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.