OEM C5 wheel specs
Thread Starter
Le Mans Master
Joined: Nov 2000
Posts: 5,210
Likes: 104
From: Fort Worth TX
St. Jude Donor '06
Father & Son St. Jude Donor '09
OEM C5 wheel specs
In my search, I've found different numbers for both offset and backspace for the rear 18x9.5 wheel. Can anyone provide all of the info, total width, offset and back space?
FS & BS should equal 9.5" and overall width from outside of lip to outside of lip is ~10.1".
I posted this in C5 Tech and in the wheels forum, no help yet. Anyone?
Thanks!
FS & BS should equal 9.5" and overall width from outside of lip to outside of lip is ~10.1".
I posted this in C5 Tech and in the wheels forum, no help yet. Anyone?
Thanks!
Race Director
Joined: Oct 2002
Posts: 16,477
Likes: 26
From: Gone
CI 6-7-8-9-10 Veteran
St. Jude Donor '03
I don't know the exact offsets of the "standard" C5 wheels, only the specs of the wider Z06 wheels. I suppose I could go out an measure my stock wheels sitting in the garage.
I can maybe answer your real underlying question if you are considering an alternate wheel and need to know if they will fit, or are wondering what to order.
I can maybe answer your real underlying question if you are considering an alternate wheel and need to know if they will fit, or are wondering what to order.
Race Director
Joined: Oct 2002
Posts: 16,477
Likes: 26
From: Gone
CI 6-7-8-9-10 Veteran
St. Jude Donor '03
Also, total width is almost always 1" wider than the (stated) width. A 9.5" wheel will typically measure 10.5" wide overall. The nominal wheel width is measured to the inside of the lips where the tire bead seats.
Backspacing, however, is a measure to the outside of the rear lip, so no, FS + BS will not be 9.5"...it will be 10.5".
Backspacing, however, is a measure to the outside of the rear lip, so no, FS + BS will not be 9.5"...it will be 10.5".
Thread Starter
Le Mans Master
Joined: Nov 2000
Posts: 5,210
Likes: 104
From: Fort Worth TX
St. Jude Donor '06
Father & Son St. Jude Donor '09
Originally Posted by Y2Kvert4me
Also, total width is almost always 1" wider than the (stated) width. A 9.5" wheel will typically measure 10.5" wide overall. The nominal wheel width is measured to the inside of the lips where the tire bead seats.
Backspacing, however, is a measure to the outside of the rear lip, so no, FS + BS will not be 9.5"...it will be 10.5".
Backspacing, however, is a measure to the outside of the rear lip, so no, FS + BS will not be 9.5"...it will be 10.5".
If you have wheels sitting in the garage, please measure overall width and the backspace. I'd love to know the real numbers. Since my wheels are mounted, meauring the overall width is very difficult and I'm too lazy to spend an hour or two just measuring a wheel to get info I won't need for quite a while. :o
