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Offset question

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Old Mar 17, 2007 | 03:03 AM
  #1  
JETSWU87's Avatar
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Default Offset question

Well i found some wheels i want, and the only thing keeping me from pulling the trigger is the offset not being the same as stock wheels.


http://cgi.ebay.com/ebaymotors/18-17...4380QQtcZphoto



Rear 18 x 10.5 / 54mm
Front 17 x 9.5 / 56mm

Now i know stock c5 wheels are

Rear 18x9.5 65mm
Front 17X8.5 54mm


My question is, will this look silly? After doing the calcutions on a website for offsets, it should(the wheel) stick about about 1inch more then stock in the rear setup.. Which i dont see being an issue, since the stock wheels are a smidge sucken in anyway.


But lookin to hear from some people with offsets that are not stock before i click that order button.


Thanks in advance,

Vincent
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Old Mar 17, 2007 | 07:27 AM
  #2  
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chuck1026
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Originally Posted by JETSWU87
Well i found some wheels i want, and the only thing keeping me from pulling the trigger is the offset not being the same as stock wheels.


http://cgi.ebay.com/ebaymotors/18-17...4380QQtcZphoto



Rear 18 x 10.5 / 54mm
Front 17 x 9.5 / 56mm

Now i know stock c5 wheels are

Rear 18x9.5 65mm
Front 17X8.5 54mm


My question is, will this look silly? After doing the calcutions on a website for offsets, it should(the wheel) stick about about 1inch more then stock in the rear setup.. Which i dont see being an issue, since the stock wheels are a smidge sucken in anyway.


But lookin to hear from some people with offsets that are not stock before i click that order button.


Thanks in advance,

Vincent
Careful when comparing offset... Offset is a calculation based on the distance of the wheel hub (what mates the hub on the car) to the centerline of the wheel.

If a wheel is 1" wider, then the centerpoint shifts 1/2".

A 9-1/2" wide wheel has a different proper offset than a 10-1/2" wheel. Also remember 10mm is about 1/2 inch, so the change in offset makes sense.

Stock Z06 wheels (I believe) are:

Rear 18 x 10.5 / 58mm (vs your 54mm option)
Front 17 x 9.5 / 54mm (vs your 56mm option)

The more positive offset, the further inboard the tire will be. Yours look fairly close.

See http://www.discounttire.com/dtcs/inf...Mlw9pkpS2dvzfQ

I hope this helps...

Chuck

Last edited by chuck1026; Mar 17, 2007 at 09:09 AM.
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Old Mar 17, 2007 | 11:38 AM
  #3  
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JETSWU87
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From: Portsmouth VA
Default

Thanks for the info, looks like it'll be pretty close to stock that im sure i wont even notice. I mean who notices 4-5mm?



not me
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Old Mar 17, 2007 | 04:04 PM
  #4  
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chuck1026
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Yeah, 5mm is like just 1/4".
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Old Mar 18, 2007 | 10:02 PM
  #5  
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From: Virginia Beach
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Do it! It'll look good... the rears will stick out 4 mm more and the fronts will be 2mm in... nothing to worry about.
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