This is an alternative to the Bafang standard 46T chainring that is supplied with each mid drive kit (BBS01 & BBS02).
These Chainring adapters can be installed in place of the standard 46T chainring supplied by Bafang for the BBS01 and BBS02.
Note: BCD = bolt circle diameter
BA104: Will accommodate chainrings from 32T to 48T with a 104mm BCD.
BA110: Will accommodate chain rings from 33T to 54T with a 110mm BCD.
BA130: Will accommodate chainrings from 38T to 55T with a 130mm BCD.
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