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E-Bike BAFANG 104BCD 52CL Spider Chain Ring Adapter for M600 M500 M510 M620 G520 G521 G510 Mid Motor Crankset 32T 34T 36T 38T 40T
E-Bike BAFANG 104BCD 52CL Spider Chain Ring Adapter for M600 M500 M510 M620 G520 G521 G510 Mid Motor Crankset 32T 34T 36T 38T 40T - Image 2
E-Bike BAFANG 104BCD 52CL Spider Chain Ring Adapter for M600 M500 M510 M620 G520 G521 G510 Mid Motor Crankset 32T 34T 36T 38T 40T - Image 3
E-Bike BAFANG 104BCD 52CL Spider Chain Ring Adapter for M600 M500 M510 M620 G520 G521 G510 Mid Motor Crankset 32T 34T 36T 38T 40T - Image 4
E-Bike BAFANG 104BCD 52CL Spider Chain Ring Adapter for M600 M500 M510 M620 G520 G521 G510 Mid Motor Crankset 32T 34T 36T 38T 40T - Image 5
E-Bike BAFANG 104BCD 52CL Spider Chain Ring Adapter for M600 M500 M510 M620 G520 G521 G510 Mid Motor Crankset 32T 34T 36T 38T 40T - Image 6
E-Bike BAFANG 104BCD 52CL Spider Chain Ring Adapter for M600 M500 M510 M620 G520 G521 G510 Mid Motor Crankset 32T 34T 36T 38T 40T - Image 7
E-Bike BAFANG 104BCD 52CL Spider Chain Ring Adapter for M600 M500 M510 M620 G520 G521 G510 Mid Motor Crankset 32T 34T 36T 38T 40T - Image 8
E-Bike BAFANG 104BCD 52CL Spider Chain Ring Adapter for M600 M500 M510 M620 G520 G521 G510 Mid Motor Crankset 32T 34T 36T 38T 40T - Image 9
E-Bike BAFANG 104BCD 52CL Spider Chain Ring Adapter for M600 M500 M510 M620 G520 G521 G510 Mid Motor Crankset 32T 34T 36T 38T 40T - Image 10
E-Bike BAFANG 104BCD 52CL Spider Chain Ring Adapter for M600 M500 M510 M620 G520 G521 G510 Mid Motor Crankset 32T 34T 36T 38T 40T - Image 11
E-Bike BAFANG 104BCD 52CL Spider Chain Ring Adapter for M600 M500 M510 M620 G520 G521 G510 Mid Motor Crankset 32T 34T 36T 38T 40T - Image 12
E-Bike BAFANG 104BCD 52CL Spider Chain Ring Adapter for M600 M500 M510 M620 G520 G521 G510 Mid Motor Crankset 32T 34T 36T 38T 40T - Image 13

E-Bike BAFANG 104BCD 52CL Spider Chain Ring Adapter for M600 M500 M510 M620 G520 G521 G510 Mid Motor Crankset 32T 34T 36T 38T 40T

DAFULI 104BCD spider chain ring adapter compatible with Bafang M500, M510, M600, M620, G520, G521 mid motors. 52 chainline design, aluminum alloy bracket & steel chainring, 32T 34T 36T 38T 40T optional, high-torque resistant, lightweight for ebike upgrade and replacement.
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DAFULI 104BCD Spider Chain Ring Adapter & High Quality Crankset for Bafang Mid Drive Motor

This premium 104BCD spider chain ring adapter is a professional upgrade and replacement accessory exclusively designed for Bafang & 8FUN mid-drive torque motor systems. Perfectly compatible with M500, M510, M600, M620, G520 and G521 motor models, it achieves seamless assembly with original ebike conversion kits and drivetrain systems. The crankset bracket adopts high-strength aluminum alloy material, while the matched chainring is made of wear-resistant steel, perfectly adapting to high-torque motor output, effectively avoiding deformation, tooth wear and slipping issues during long-term high-load riding. Standard 104BCD structure supports multi-tooth options from 32T to 40T with 52 chainline standard, providing flexible gear ratio adjustment for daily commuting and off-road riding. Ultra-light compact design ensures easy installation, storage and transportation, being an ideal cost-effective accessory for ebike DIY modification, drivetrain upgrade and daily maintenance.

Compatibility

✅ Bafang / 8FUN M500 Torque Mid Drive Motor
✅ Bafang / 8FUN M510 Torque Mid Drive Motor
✅ Bafang / 8FUN M600 Torque Mid Drive Motor
✅ Bafang / 8FUN M620 Torque Mid Drive Motor
✅ Bafang / 8FUN G520 G521 Mid Drive Motor
✅ Matching Combination: M500-G520 / M510-G522 / M600-G521 / M620-G510

Product Specifications

Parameter
Value
Brand
DAFULI
Product Name
104BCD Spider Chain Ring Adapter / Crankset Bracket
BCD Standard
104BCD
Chainline
52
Optional Teeth
32T / 34T / 36T / 38T / 40T
Bracket Material
High-strength Aluminum Alloy
Chainring Material
Wear-resistant Steel
Net Weight
0.060kg
Package Size
23 × 15 × 5 cm
Compatible Motor
Bafang/8FUN M500 M510 M600 M620 G520 G521 Torque Motor
Core Advantage
High torque resistance, anti-wear, stable transmission, easy installation
Packing Unit
1 Piece Per Pack

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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.

Mark Wilson Repair Technician

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.

Jennifer Carter Wholesale

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.

Ryan Thompson ebike shop owner

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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.