Arlen Ness Polyurethane Riser Bushing Kit For Harley It's time to get rid of those worn-out rubber bushings and upgrade with Arlen Ness Polyurethane Riser Bushings. The bushings are 28 stiffer allowing for better control while still providing exceptional vibration absorption. Features: Eliminates flex while isolating vibration Heavy duty cup washers will not bend or distort like factory units Each kit includes polyurethane bushings, inner steel sleeves and heavy duty black coated cup washers A must when installing new handlebars or bikes with heavy engine vibration