Is it possible to add middrive to jackshaft

Discussion in 'Electric Bicycles' started by rexamillion59, Sep 25, 2016.

  1. rexamillion59

    rexamillion59 New Member

    I have a gas bike with a jackshaft and want to add a bafang 8 fun middrive to the equation. The challenge seems to be chain ring any idea

  2. FurryOnTheInside

    FurryOnTheInside Well-Known Member

    I have recently had a look at the Bafang 8 fun motors (on "that auction site") and I think they are not suitable for combining with the SBP freewheel crankset due to lack of lateral adjustment. However the SBP electric motor does appear to be able to do this. With a little adjustment of the lateral position of the electric motor and/or the right side jackshaft chain. You would have three chainrings bolted together and perhaps the electric chain on the inside, final drive in the middle and the js chain on the outside. Or the final drive on the inside, electric input in the middle and the js chain on the outside.