Run in Reverse?

[rrraul]

If you simply flip the motor around, the drive sprocket will be in towards the front of the motor. On most bikes except some stretch cruisers, this would also be in front of the chainrings.

Ohh now I understand what you mean. Thats a good point. I dont think it would have to be completely upside down though. It just depends on how your bike is shaped. I guess it would be more work than simply flipping the motor around. but i wouldnt call it impossible just yet