If they is Harley-Davidson, no. Most other shock/spring makers do. Stock rear shocks are about 16inchs. Don't go less than about 14 1/2inch. or you will probably be hiting the fuel tank with the rear fork cross piece. Could be dangerous. Works Performance, Performance Suspension, Hyper Pro, Hyper Teck, others. Search in the VRSCR forum, there have been several good threads concerning rear shocks and front fork tuning.V-Noob said:Do they even make a kit like that for the "R" ?