pic: Custom drivetrain

[pilleya]

Originally Posted by cbale2000

If there is a CIM in the back, it would appear to be driven differently than the one in the front, as there is a threaded rod supporting the back wheel but not the front.

It looks like your correct, so if this is the case and it is only 2CIM, then it will be interesting, that means that there is also 1/2 the friction area of the pulley against the tread, that I thought that there was. It looks like a BB 220 gearbox and while it is a rugged gearbox Banebots says " We recommend using a design that supports the end of the shaft", probably isn't a huge problem here as the wheel is close to the face, but something to be aware of