BBM, I am not saying you made that claim. I asked a question if you knew otherwise. I see now with your post that info. isn't available, so you answered my question. Tire rims AFAIK are not made of lead, being that lead is a soft metal. Commonly seen are alloy (magnesium and aluminum), mag (magnesium), aluminum, and chrome. Teflon coatings are sometimes also applied for an extra layer of protection.