Hmm, the last time I saw aftermarket units, they strapped to the inside of the wheel. It seems like most are now attached to the bottom of the valve stem. That's unfortunate. The wheels on my wife's car (came with the car) have 2 valve stems per wheel and the stems are red anodized Al. Having to replace one of the stems would suck. I don't see any more of the things that attach with a strap. Bummer.
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Steve
'08 Boxster RS60 Spyder #0099/1960
- never named a car before, but this is Charlotte.
'88 targa

SOLD 2004 - gone but not forgotten