Rear aluminum sprocket made from heat-treated 7075 T-6 aluminum. Comes with self-cleaning grooves. All OE matched for perfect fit and size. ORM ORing chain provides exceptional durability and long-lasting features, making it perfect for motorcycles and ATVs. -Features solid bushings with pin material, ORings, and lubricant. Unique chain design and profile ensure durability and decrease wear on chain guides and swingarm friction plates. -Average tensile strength 7,850 lbs. -Master-Link style clip included.