I used an '89 suzuki quadracer frame.I built my own mounts and modified a pro circuit pipe to work. Built my own +3 a -arms up front.Vibrates a little too much though.But, I later found out my crank was worn where it rides the bearings wich can lead to vibes.I am looking for any and all remedies for the vibes.Working on gusseting the frame right now and saving money for the crank and crank work.