the planetary gear set inside the hub motor

Compatibility Note:
K10, B1, SU8, V1 and R700 Pro have multiple accessory versions depending on the production batch.

After ordering, please email us at contact@bluvall.com with:

• Ebike photo
  
• Ebike Order screenshot
  
• Ebike Frame Number Photo
  
• Motor Serial Number

We will confirm the correct version and add the details to your order before shipping.

Ebike Frame Number Photo

Motor Serial Number