[robz71lm7]

I've got to wonder how much these are actually worth...

http://www.chevymall.com/jump.jsp?itemID=2...temType=PRODUCT

[lateapex]

They are USED wheels. They are retired when bent or they fail the crack test, or the end of the season. They are considered, officially, as unsafe for use. They are not legal for street use when new. The rim cross-section varies in thickness, but at its thinnest is @ .070”. They probably have the valve stem hole opened up to 2” so that no one would try to actually use them as wheels (that alloy is over 94% Mg). They are meant for souvenirs.

Before the team switched to OZ, the BBS one-piece forged magnesium wheels they used cost $1,500 each. The rears weighed 16 lbs even, for sure, and measured 18” x 14” as I recall. That is one reason BBS lost the contract for the team. The new rear OZ weighed about 15.5 lbs, and had considerably less deflection. The C5R drivers were about ½ second per lap quicker with the OZ. I found that hard to believe, but it was BBS’s lead (north American) track-side tech telling me the story right after it happened. He said most of the reduction in lap time came from the lessened deflection, rather than the weight savings.