Solder by individual cup. 
A 41mm outer diameter, 33.5mm inner diameter cup that presses into a frame to allow fitment of a standard Bafang motor.
Install 2x Lekkie 41mm Press-Fit Cup for 41mm BB bikes where the Lekkie BB86/92 Adapter can’t be fitted. This will allow you to fit a Bafang motor of the correct length to a 41mm press-fit BB fat bike or wide BB. If you are wanting to fit a 68/73mm Bafang motor to a BB86, BB90 or BB92 check out the BB86/92 Adapter here.