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Help!! 18 rim help please

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Old Aug 8, 2011 | 05:00 PM
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Default Help!! 18 rim help please

What offset do I need for some 18x8 rims. I've been to two difrent wheel stores and they told me completely different things
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Old Aug 8, 2011 | 05:08 PM
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An 8" wide wheel is 1/2" narrower than stock for the front of a C5.

Stock sizes are 17x8.5 front with a 59mm offset and 18x9.5 with a 63mm offset rear. Stock C5 Z06 is 17x9.5 and 18x10.5.....same offsets.
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Old Aug 8, 2011 | 05:25 PM
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Im buying aftermarket rims and need a offset for the front
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Old Aug 8, 2011 | 11:51 PM
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Originally Posted by blacksedan87
Stock sizes are 17x8.5 front with a 59mm offset and 18x9.5 with a 63mm offset rear. Stock C5 Z06 is 17x9.5 and 18x10.5.....same offsets.
OK, here are some numbers that were posted here on the forum by another member:

Offset dimensions are as follows:

C5 (coupe/convertible):
Front 17x8.5", 58mm offset
Rear 18x9.5" 65mm offset

C5 Z06:
Front 17x9.5", 54mm offset
Rear 18x10.5", 58mm offset

So, which is correct? Just trying to make sure I have the correct info for future reference.
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