Sunstar Rear Works-z Sprocket Steel 51t-520 Honda/yamaha

Sunstar is the largest o.e.m. supplier of sprockets and brake rotors in the world. in fact, your motorcycle probably came from the factory with a sunstar sprocket. need a reason to choose sunstar? every sunstar product is imbued with superior quality, uses an exclusive heat-treatment and quenching process, is based on advanced research and design, and is sold at an added value price. the evolution of the exclusive sunstar z sprocket, now made from the highest quality stainless steel. weighs up to 50% lighter than standard steel sprockets. 100% heat treated and even lighter than before with new weight reduction cut outs, but still has a hardness 5 times that of an aluminum sprocket and twice that of a standard steel sprocket. up to 4 times more durable with 1.2 times the lateral strength of any aluminum sprocket. great self cleaning capabilities due to the offset tooth design, same as the original z sprocket, which extends the life of the entire chain drive system. the lightest steel sprocket available on the market.