Wheels
Race Director
Joined: Dec 2003
Posts: 14,157
Likes: 938
From: Fremont Ca
2022 C4 of the Year Finalist - Modified
GS wheel is 50MM,Z wheel is 36MM.Ask me how I know
There,now Im only stupid in one post.To use OEM A-Molds you need to do some work to get them to fit correctly but the way I see it,you can have fakes or you can have the real deal.
There,now Im only stupid in one post.To use OEM A-Molds you need to do some work to get them to fit correctly but the way I see it,you can have fakes or you can have the real deal.
Last edited by Z51JEFF; Apr 24, 2008 at 12:00 PM.
Team Owner
Joined: Sep 2003
Posts: 25,406
Likes: 2,744
How do you know? 
FACT: Difference? 14mm
ZR-1 production 17 X 11 wheel offset is +36mm!
GS production 17 X 11 wheel offset is +50mm!
Documentation is "all-over" the place and I'll leave it at that! Jeff knows all to well after struggling with spacers to correctly mount GS wheels on his ZR-1!
Changed my mind here's a couple links:
Wheel: http://www.corvetteactioncenter.com/...usp_chart.html
Offset explained simply: http://www.tirerack.com/wheels/tech/...jsp?techid=101
FACT: Difference? 14mm
ZR-1 production 17 X 11 wheel offset is +36mm!
GS production 17 X 11 wheel offset is +50mm!
Documentation is "all-over" the place and I'll leave it at that! Jeff knows all to well after struggling with spacers to correctly mount GS wheels on his ZR-1!
Changed my mind here's a couple links:
Wheel: http://www.corvetteactioncenter.com/...usp_chart.html
Offset explained simply: http://www.tirerack.com/wheels/tech/...jsp?techid=101
Last edited by WVZR-1; Apr 24, 2008 at 04:07 AM.
Instructor
Joined: Mar 2001
Posts: 173
Likes: 1
From: Katy, TX
I would like to find an extra set of wheels also. I would prefer used wheels and this seems to be a difficult challenge due the the ZR-1 rear wheel offset. Ebay has tons of ZR-1 wheels but most of them have the GS (50mm offset). I love the look of Fikse wheels but I have yet to find a set of used wheels like these. Black chrome ZR-1 after market wheels look great, but not sure how they would look with Admiral Blue. The search continues..........
Mike Boggs
94 AB/Black ZR-1
97 C5 coupe
92 C4 convert.
Race Director
Joined: Dec 2003
Posts: 14,157
Likes: 938
From: Fremont Ca
2022 C4 of the Year Finalist - Modified
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Team Owner
Joined: Sep 2003
Posts: 25,406
Likes: 2,744
Fronts are just +56mm but all of that information is in the first link I posted. Check the link and do some research on your own to satisfy yourself of the results and then just shop! It really seems your not "prepared" yet and there's substantially more you can learn "searching on your own" and then returning with more direct questions!
There are wheel builders that build "close" to factory offsets and it's relatively easy to determine the fit yourself. If you've found a particular wheel you like get the specs from the builder and post the wheel model and the specs passed on to you by the builder. Likely someone has/had the set-up and can offer assistance regarding the fit.
There's not really a "generalization" that can be tossed out there regarding wheels.
There are wheel builders that build "close" to factory offsets and it's relatively easy to determine the fit yourself. If you've found a particular wheel you like get the specs from the builder and post the wheel model and the specs passed on to you by the builder. Likely someone has/had the set-up and can offer assistance regarding the fit.
There's not really a "generalization" that can be tossed out there regarding wheels.
Last edited by WVZR-1; Apr 24, 2008 at 08:05 PM.
Thread Starter
Racer
Joined: Mar 2006
Posts: 420
Likes: 0
From: Orange Park (Jacksonville) FL
Thanks.
The chart from the Corvette Action Center is great !
I have read the Tire-rack explanation of offset before, but like a lot of technical things, I often have to reread stuff.
Thanks......
The chart from the Corvette Action Center is great !
I have read the Tire-rack explanation of offset before, but like a lot of technical things, I often have to reread stuff.
Thanks......
Drifting
Joined: Feb 2005
Posts: 1,561
Likes: 75
From: Maryland
If you replace your 17X10 (36mm) offset ZR1 wheels with 17X10 (50mm offset) Grand Sport wheels you will lose 14mm's of clearance on the inside of the rim and the outside edge will of the wheel will retract 14mm into the wheel well.
14mm is .55" or a little more than 1/2 of an inch.
14mm is .55" or a little more than 1/2 of an inch.
Race Director
Joined: Dec 2003
Posts: 14,157
Likes: 938
From: Fremont Ca
2022 C4 of the Year Finalist - Modified
If you replace your 17X10 (36mm) offset ZR1 wheels with 17X10 (50mm offset) Grand Sport wheels you will lose 14mm's of clearance on the inside of the rim and the outside edge will of the wheel will retract 14mm into the wheel well.
14mm is .55" or a little more than 1/2 of an inch.
14mm is .55" or a little more than 1/2 of an inch.
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Intermediate
Joined: Sep 2002
Posts: 39
Likes: 0
From: vancouver bc
I have a set of aftermarket GS offset wheels I would like to put on my 95 ZR-1 during winter storage. Do you think that they will fit for that purpose or are the studs too short to hold?
thanks
thanks
Race Director
Joined: Dec 2003
Posts: 14,157
Likes: 938
From: Fremont Ca
2022 C4 of the Year Finalist - Modified
