Supersprox Rear Sprockets
Supersprox Stealth Sprockets
Stealth will last three times longer than aluminium and twice as long as lower quality steel sprockets. The Stealth is not more expensive than alloy sprockets in real terms. Because the sprocket lasts three times as long, the cost versus life is much lower than that of aluminium. If you put on a high quality chain, don't ruin it with cheap sprockets!