Started out with a  1973 Yamaha RD350 we move the swingarm pivot points back about three inches and  put a RZ rear end on swingarm disk brakes and a after market Fox race shock mono shock. We went from a 73 twin shock to a modified RZ race rear end with a 6 and 1/2 inch stretch to the rear end. Vintage Avon front clip modified RD400 tank and a vintage Ducati tail section

Photos from Richard Weslow