BBS01/BBS02 42T Aluminum 6061 BLING RING narrow-wide tooth pattern chain wheel

44T/46T/48T/52T Iron chainwheel used for Bafang BBS01/BBS02 mid-drive motor chainring sprocket wheel crankset

 

 

BBS M315 bling ring 42T/44T/46T/48T/52T Chain Wheel chainring

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