Maximum performance. Proven durability. Engine builder approved. Introducing the Ultimate Rear Sprocket – engineered for racers who demand every possible advantage. Featuring an enhanced deep tooth chamfer, the Ultimate Sprocket provides superior engagement between the chain rollers and sprocket teeth. This refined tooth profile promotes smoother power transfer, reduced friction, and more consistent chain contact under acceleration. Developed alongside extensive track testing, the Ultimate Sprocket has been tested and approved by well-known engine builders, giving you confidence that it's built to perform at the highest level. Machined from aerospace-grade aluminium, the Ultimate Sprocket delivers exceptional strength without unnecessary weight. A premium hard anodised finish provides outstanding wear resistance, helping maintain tooth integrity and extend sprocket life race after race. Whether you're chasing tenths or looking for a sprocket that lasts, the Ultimate Rear Sprocket delivers uncompromising performance. Features Enhanced deep tooth chamfer for improved chain roller engagement Smoother, more efficient power transfer Tested and approved by respected engine builders Precision CNC machined from aerospace-grade aluminium Hard anodised for maximum wear resistance and longevity Designed for consistent performance with minimal wear Engineered to perform. Built to win.