From  pswpower

Bafang Speed Sensor  Replacement  for BBS01B BBS02B BBS03B BBSHD Mid Drive Crank Motor Kit

Package include:

1.1Xspeed sensor for 8FUN standard center motor

Return & Refund:
After receiving the item,buyer should start a return within 7 days.Return postage will be paid by buyer.The return items must be in original conditions never used.

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