Abstract: A bicycle comprising a frame supported on front and rear wheels. A left wheel support includes a left hole and a left slot extending through the left wheel support to cooperatively form a left keyhole through the left wheel support. A right wheel support includes a right hole and a right slot extending through the right wheel support to cooperatively form a right keyhole through the right wheel support. A left spacer may be removably positioned in the left keyhole and include a left axle hole with a drive flat and a left torque arm positioned in the left slot. A right spacer may be removably positioned in the left keyhole and include a right axle hole with a drive flat and a right torque arm positioned in the right slot. A method is also disclosed for converting a bicycle having a first wheel type to a bicycle having a second wheel type.