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Error code: Error 21 Error code: Error 21
  1. E-Wheels
  2. Service & Warranty
  3. Electric Bicycle

Error code: Error 21

Error 21 involves an error with the motherboard.


Motherboards must be changed, contact us via email or in store, and we will send you a new motherboard.

If you cannot change the motherboard yourself, send us a bicycle and we will change it for you.

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