Supersprox Stealth Rear Sprocket - 50T RST-8000-50-REDSupersprox stealth is about longer life, without compromising weight. Primary goal, to last 3 times longer than an all aluminum sprocket and remain as light as possible. Its about performance and function first and last. Supersprox stealth is infinitely better than steel! You just cant achieve this level of strength on a steel sprocket with the same weight. Sure, there are light steel sprockets out there, but they cant handle the torque. Pound (lb)