Refined Cycle HR2-Riser Extensions for Mean Streak, Marauder 1600 & Vulcan 900 This is a polished billet aluminum set of handlebar riser extensions for Kawasaki Mean Streak, Vulcan 900 & Suzuki Marauder 1600. They extend your bars up about 1/2" and backward about 2". No hardware is included due to the many bikes and configurations these will fit. The bottom holes are threaded for M10-1.25 to attach to triple tree. Uses existing cables and wiring! No drilling! You may find that you want to remove some of the lines from the guards or bend the guard on some models. Counterbore on the bottom allows clearance for the handle bar bolt head or a nut.