Measuring Wheels
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Joined: May 2002
Posts: 4,579
From: Cincinnati, OH
Measuring Wheels
I have some C5 Z06s that I was trying to figure out the size of. Do you just measure from rim to rim to get width? I did that and got 10.5". The reason I ask is because I'm trying to figure out if they're 18s or 17s. I measure across the wheel and get like 18.5" but they look the same size as my 17" ZR1s. 
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Joined: Nov 1998
Posts: 71,098
From: Hell was full so they sent me to NJ
Re: Measuring Wheels
From Tire Rack:
You measure the width between the flanges, where the tire beads sit. You measure the diameter in the same location, where the edge of the tire bead sits.
Your wheels are 17x9.5"
You measure the width between the flanges, where the tire beads sit. You measure the diameter in the same location, where the edge of the tire bead sits.
Your wheels are 17x9.5"
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