Bafang BBS01 BBS02 chainring adapter 104 or 130 mm bolt circle

This adapter can be used to replace the original chainring on the Bafang BBS01 and BBS02 and to use standard chainrings with a bolt circle of 104 mm or 130 mm, depending on your choice.

The chainring should be mounted on the inside for a better chainline. Two chainrings can also be used – one for uphill sections with a lot of torque and the other for high speeds. The selection of standard chainrings is huge and almost all gradations are possible. Chainring bolts are also included.

When mounting 2 chainrings, 1-2 spacers must also be used, otherwise the bolts will rub against the motor housing (see video below).

The inner hole has a diameter of approx. 50 mm, the bolt circle of the chainring bolts is approx. 60 mm.