Originally Posted by gardnertroy

Technically, the doughnuts are stronger. It's a radial tire and the m&m racemasters are bias ply. So in reality they are tougher. But they are too short and say so much temporary crap on them that you would probably not pass tech at most tracks. I massaged the lettering off and sandblasted mine. The only lettering I left on the wheel was the Gm logo. Powder coat next with some racemasters. The wheel itself weighs 10lbs by itself. My factory g8 18's weigh 32lbs without tires too. So I'm dropping 22lbs in wheel weight alone. Not sure on total weight savings, still have to mount the racemasters. Hope this helps a little