Tech Manual Input-Wheel Offset
Thread Starter
Drifting
Joined: Apr 2005
Posts: 1,746
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From: Upper St. Clair PA
St. Jude Donor '06-'07-'09
Tech Manual Input-Wheel Offset
Can someone give me the correct offset for the C6. I am ordering new wheels (Fikse), and want to double check the specs. 
I assume that the proper offset is a standard measurement, and that all wheel manufacturers have to meet the particular mean distance from the hub. What is the correct offsets for the front and the rear? Is there any leeway? (ie. Is + or - 10 mm a workable variance?)
Thanks.
I assume that the proper offset is a standard measurement, and that all wheel manufacturers have to meet the particular mean distance from the hub. What is the correct offsets for the front and the rear? Is there any leeway? (ie. Is + or - 10 mm a workable variance?)
Thanks.
Le Mans Master
Joined: Dec 2004
Posts: 5,759
Likes: 539
From: AZ
St. Jude Donor '06-'08-'10-'11-'12-'13 '14-'15-'16-'17-'18-'19
Offsets
Stock numbers
Front 18x8.5 - 58
Rear 19x10 - 79
Those are the numbers directly off my stock OEM C6 wheels.
So offsets are 58mm front and 79mm rear.
Hope that helps
Front 18x8.5 - 58
Rear 19x10 - 79
Those are the numbers directly off my stock OEM C6 wheels.
So offsets are 58mm front and 79mm rear.
Hope that helps
Last edited by ByByBMW; Mar 25, 2006 at 09:59 AM. Reason: Add info
Race Director
Joined: Sep 1999
Posts: 12,435
Likes: 916
From: CONCORD NC
The guys at Fikse know what fits your car, although double checking is fine. The above numbers are centerline offset (ie, distance from centerline of wheel to the mounting surface). Many folks also use total backspacing, which measures form the mounting surface to the very inside of the rim.
If you are going to a wider rim, knowing total backspacing is more useful for visualizing how the wheel will fit. If you are going with stock widths, than you have a lot of leeway. You can go up to 30mm (maybe more) away from stock without any problems, although it might look funny if the tires are too far in or out.
If you are going to a wider rim, knowing total backspacing is more useful for visualizing how the wheel will fit. If you are going with stock widths, than you have a lot of leeway. You can go up to 30mm (maybe more) away from stock without any problems, although it might look funny if the tires are too far in or out.
