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E-bike Motor Rotor with Gear Shaft for Bafang BBS01B BBS02B Mid Drive Motor, 16 Magnet Poles Replacement Rotor
E-bike Motor Rotor with Gear Shaft for Bafang BBS01B BBS02B Mid Drive Motor, 16 Magnet Poles Replacement Rotor - Image 2
E-bike Motor Rotor with Gear Shaft for Bafang BBS01B BBS02B Mid Drive Motor, 16 Magnet Poles Replacement Rotor - Image 3
E-bike Motor Rotor with Gear Shaft for Bafang BBS01B BBS02B Mid Drive Motor, 16 Magnet Poles Replacement Rotor - Image 4
E-bike Motor Rotor with Gear Shaft for Bafang BBS01B BBS02B Mid Drive Motor, 16 Magnet Poles Replacement Rotor - Image 5
E-bike Motor Rotor with Gear Shaft for Bafang BBS01B BBS02B Mid Drive Motor, 16 Magnet Poles Replacement Rotor - Image 6
E-bike Motor Rotor with Gear Shaft for Bafang BBS01B BBS02B Mid Drive Motor, 16 Magnet Poles Replacement Rotor - Image 7
E-bike Motor Rotor with Gear Shaft for Bafang BBS01B BBS02B Mid Drive Motor, 16 Magnet Poles Replacement Rotor - Image 8
E-bike Motor Rotor with Gear Shaft for Bafang BBS01B BBS02B Mid Drive Motor, 16 Magnet Poles Replacement Rotor - Image 9
E-bike Motor Rotor with Gear Shaft for Bafang BBS01B BBS02B Mid Drive Motor, 16 Magnet Poles Replacement Rotor - Image 10
E-bike Motor Rotor with Gear Shaft for Bafang BBS01B BBS02B Mid Drive Motor, 16 Magnet Poles Replacement Rotor - Image 11

E-bike Motor Rotor with Gear Shaft for Bafang BBS01B BBS02B Mid Drive Motor, 16 Magnet Poles Replacement Rotor

Bafang BBS01B BBS02B mid drive motor rotor assembly with gear shaft and 16 magnet poles. Compatible with G340 36V/48V 250W 350W 500W 750W e-bike motors, ideal replacement spare part for Bafang mid-drive systems.

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Bafang BBS01B / BBS02B G340 E-bike Mid Drive Motor Rotor

This motor rotor assembly is a direct replacement spare part specially engineered for Bafang BBS01 and BBS02 mid-drive e-bike motors. It comes pre-assembled with gear shaft and 16 magnet poles, perfectly matching the original motor structure for seamless installation.

Compatibility

Fits Bafang G340 series mid drive motors in multiple power & voltage versions: ✅ 36V 250W / 36V 350W / 36V 500W ✅ 48V 350W / 48V 500W / 48V 750W

Two sizes available:

  • BBS01B: Total height 80.6mm, magnet height 21.5mm
  • BBS02B: Total height 86.8mm, magnet height 29mm

Product Features

✅ Integrated Gear Shaft & 16 Magnet Poles: Complete rotor assembly, ready for direct motor overhaul and replacement.

✅ Durable Construction: Made of high-quality sturdy materials, free of high-concern chemicals, eco-friendly and stable for long-time riding.

✅ Precision Dimensions: Strictly manufactured to original specs, guarantees reliable performance after replacement.

✅ Wide Power Range: Covers most popular G340 BBS01 / BBS02 power variants for e-bike rebuild.

Specifications

  • Product Name: E-bike Motor Rotor Assembly
  • Applicable Motor: Bafang BBS01B / BBS02B G340 Mid Drive Motor
  • Magnet Poles: 16 pcs
  • Package: 1 piece per pack
  • Package Size: 10 × 10 × 10 cm
  • Gross Weight: 1.000 kg
  • Origin: Mainland China

This rotor spare part is perfect for e-bike repair shops, DIY rebuilders and dealers. It can replace your worn or damaged original rotor to restore the power output of your Bafang mid-drive motor.

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

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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.