I started equipping my dirt bikes with Supersprox Stealth rear sprockets right after they came on the market. The steel outer ring is very durable, outlasting any OEM sprocket I've ever ran, and FAR outlasting cheap aluminum sprockets. This one is replacing another Supersprox Stealth on my KTM 300 XC-W, that has 108 hours / 2070 miles on it. The anodizing on the inner ring is a very rich color, looking every bit as good as the photos you see. If they made these for my street bike, I'd have one on it too.