Krator Spike Black Swingarm Spools Sliders Motorcycle For Yamaha XV250 Virago 2007 Black Yamaha Spiked Swingarm Spools Sliders Easy installation! bolt straight into your swingarm (mounting bolts are included). These swingarm spools are designed to protect your swingarm & axle nut in the event of a crash. Brand: Krator | They can also be used with a race stand to lift the rear wheel off of the ground for changing your tire or oiling your chain. Fitment: Yamaha XV250 Virago 2007