The unique hybrid Stealth sprockets feature steel teeth to ensure long life and an aluminum core to lighten the load. This design claims a three times longer life than full aluminum sprockets that tend to wear and snap teeth under high stress (wheelies, drag runs and everything else fun on two wheels). The lighter core claims a weight reduction of 10 to 50 percent less than an all-steel sprocket—depending on application and tooth count. Standing out with black teeth and solid rivets, the rear sprocket core comes in a range of colors including gold, black, blue and red. Supersprox will also take custom orders for unique applications or tooth counts if needed. Built for performance junkies and mileage gobblers, Supersprox offers a lifetime guarantee on its sprockets when purchased with a chain kit (see Web site for details), making it hard to look past this exceptional gearing option for form and function.