Wheel Sizes and Offsets
Thread Starter
Instructor
Joined: Aug 2017
Posts: 192
Likes: 10
Wheel Sizes and Offsets
Hi all this is my first post in a while so please bear with me.
I am looking to upgrade my wheels on my 2002 C5 Coupe. I am looking to stay with factory sizes 17x8.5 and 18x10.5. The wheels I am looking at are the 2009 C6 ZO6 Spyder wheels that are made to fit my C5 in the factory sizes. The factory offsets are different from the aftermarket wheel's offsets. Does this make a difference even those the size of the wheel matches the factory sizes.
Thank you all in advance,
J
I am looking to upgrade my wheels on my 2002 C5 Coupe. I am looking to stay with factory sizes 17x8.5 and 18x10.5. The wheels I am looking at are the 2009 C6 ZO6 Spyder wheels that are made to fit my C5 in the factory sizes. The factory offsets are different from the aftermarket wheel's offsets. Does this make a difference even those the size of the wheel matches the factory sizes.
Thank you all in advance,
J
Thread Starter
Instructor
Joined: Aug 2017
Posts: 192
Likes: 10
Thread Starter
Instructor
Joined: Aug 2017
Posts: 192
Likes: 10
I apologize I meant a 9.5 for the rear That was a typo. My factory tires are still good so I would be running 245's up front and 275's in the rear.
J
Drifting
Joined: Dec 2010
Posts: 1,776
Likes: 500
From: West Seneca NY
The rear would only be out 8mm or about .300 then so that would be fine, depending on how the overall width of your tire is when mounted it may actually be flush to the fender.
Stock Goodyears run wide a rear 275 when mounted on a 9.5 rim is 11.25 overall width.
Stock Goodyears run wide a rear 275 when mounted on a 9.5 rim is 11.25 overall width.
Last edited by 6speedsteve; Aug 14, 2017 at 11:31 PM.
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Drifting
Joined: Dec 2010
Posts: 1,776
Likes: 500
From: West Seneca NY
The info on that chart is incorrect, the front is 58mm offset, the rear is 65mm offset, it is stamped into the back of the factory rim.
The front rim he is looking at is fine only 2mm difference, the rear rim is 8mm difference which is .300, that will push the rim out .300 but will still fit fine.
The front rim he is looking at is fine only 2mm difference, the rear rim is 8mm difference which is .300, that will push the rim out .300 but will still fit fine.
Racer
Joined: May 2019
Posts: 316
Likes: 21
From: Michigan
The info on that chart is incorrect, the front is 58mm offset, the rear is 65mm offset, it is stamped into the back of the factory rim.
The front rim he is looking at is fine only 2mm difference, the rear rim is 8mm difference which is .300, that will push the rim out .300 but will still fit fine.
The front rim he is looking at is fine only 2mm difference, the rear rim is 8mm difference which is .300, that will push the rim out .300 but will still fit fine.
Last edited by 2002 C5; Jul 24, 2022 at 03:39 PM.