ROLL DESIGN ATV Swing Arms boast extraordinary detail and champion-tested engineering that allow for monstrous amounts of rear wheel travel from the hand-formed 4130 chromoly masterpieces that achieve the utmost in strength and longevity regardless of the terrain. The main rails of the swing arm utilizes a tapered configuration that allows for maximum torsion and beam strength along the certified TIG-welded joints. The rear carrier housing is precision honed for proper bearing carrier fitment and include needle pivot bearings, zinc plated pinch bolts and a choice of skid plate mount or chain slider mount. Select model swing arms for your quad use a low-drag, long-wearing Delron chain roller. All arms are available in a variety of standard and customized colors as well as swing arm configurations that are race- and terrain-specific applications that include the motocross track, woods, the sand dunes of Glamis and the desert races of such places as the Tecate SCORE Baja 1000.