Most of our Bafang BBS-02 and BBS-HD mid-drive systems come standard with a 46T chainring. If the teeth are wearing down from the extra torque from the motor, we offer spares and replacements. In addition, we now also offer a 34T narrow wide chainring, 36T narrow wide chainring, and 38T narrow wide chainring in multiple color options, although these will need an adapter for 104 BCD.
