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					Originally Posted by Chard  I have used magnesium wheels in the past on my Audi. 
 Magnesium is a brittle material and once it's cracked, it's difficult/impossible to find a welder to fix the rim correctly.
 
 Also, magnesium wheels theoretically have an expiration date.
 
 Is there a particular reason you want to run magnesium? There are other wheels out there that are strong and lightweight.
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I've seen some mag. centers for sale that would bolt into the sport design wheels I have. Thought it would be a neat way to lose a lot of weight. The cast centers are extremely heavy. It sounds like it would be risky to buy used.