Most likely the toughest rear sprocket money can buy and it comes with a 1-year wear warranty!
Made from a steel alloy used by the US military and because of the radical design the weight is just slightly more than a normal aluminum sprocket. For riders that ride a lot or when the weapon of choice is a 450, it´s the most economical choice.
Combine this with Tsubaki Omega or Alpha and you got a killer setup. Don´t forget to keep track of the chain stretch as the sprocket will not show any wear.