Just a follow up, I fabbed up a 2.5″ extension to mount on the brake side support. 1″ hex bar with drilled and tapped 8mm x 1.25 threads in each end. bottom bolted tight to the chassis side pipe mount. and Rotax rubber to the top between extension and pipe. I think it should work well. Every thing clears with plenty of room to move motor back and forth for gear changes.