There was a year where the cars had aluminum spares, I think it was 89. You could wet sand them and buff and they looked chrome. I have a set, but I think there are clearance issues wit the front calipers.
i used a pair last year at a couple different tracks and was never questioned about them. i polished them up and they don't look to bad. not as nice as welds etc but a lot cheaper. they also weigh A LOT less than the steel conterparts. by the way the speed rating is for the temporary spare TIRE and not the wheel.
I use the aluminum spare rims as skinnies on my car ,not as pretty as aftermarket ,but they were free.They do have some small virtues ,they are fairly light ,can be polished to look reasonably good,and don't require special lug nuts.On the other hand ,they don't match any aftermarket wheels out there so they do stand out a little,and they don't have any center caps.
My bullitt has a 17" spare to clear the brakes, and the tire is a 165 and doesn't look like the "average" bicycle spare tire, but a real tire. are these ok at higher speeds? if not, what is an average 165's sidewall? couldn't come up with anything on tirerack.
I've got a couple of shots of mine hanging in the air ,but i can't post them here since they're not hosted anywhere on the net.I have posted them at stangnet,since you can post right from your hard drive there.
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