Krator SA001-B Black Swingram Spool Slider (Honda Engraved-CBR 600 250 900 954 1000"RR RC51 and More (2000-2011) Attributes: High Quality Billet Aluminum Swing arm Spools/Sliders(Left & Right Sides)These swing arm spools are designed to protect your swing arm & axle nut in the event of a crash Easy installation no additional hardware required Manufactured in China