Krator Spike Black Swingarm Spools Sliders Motorcycle For Kawasaki ZX1000 Ninja ZX-10R 2011-2012 These swingarm spools are designed to protect your swingarm & axle nut in the event of a crash. High quality Spike Billet Aluminum Swingarm Spools/Sliders(Left & Right Sides) Easy installation! bolt straight into your swingarm (mounting bolts are included). 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: Kawasaki ZX1000 Ninja ZX-10R 2011-2012