Supersprox MX Stealth Rear Drive Sprocket Fits Gas Gas, Fits Husaberg, Fits Husqvarna, Fits KTM - RearSupersprox stealth is about longer life, without compromising weight. Primary goal, to last 3 times longer than an aluminum sprocket and remain as light as possible. It's about performance and function first and last. Its perfect for any bike up to 1400 cc. Do you have a powerful 4 stroke or performance street bike? Covering high mileage or road racing, then this is your best option. A single sprocket can last more than 20,000 miles (See maintenance