Tire Fittment

[ResponsE]

I currently have the Z06 style rims on my stock C5.
I was wondering about tire fitment as I need to replace my weather cracked Proxes.

The current tires are 245/40ZR18 and 285/40ZR18

I have located a very reasonably priced set of tires that are 255/45ZR18 and 285/40ZR18.

Will this swap work? Will I experience problems? Thanks in advance guys!'

 

[Keith Tedford]

I don't know about the C5s but Manny told me that I could go one size bigger to the 295s on our car with no rubbing issues. THAT is one thing that can get very old very quickly if tires are rubbing every time you are uneven ground. Been there with the old Chevelles.

 

[Riley P]

Those tires will fit just fine....physically. However, the problem is that they are approximately the same diameter with the fronts being a little larger. This will cause issues with the AH/TC system. You want the rear tires to be at least .5 inches larger in diameter with a maximum of 1.5" larger for the AH/TC to work properly.

 

[nascar03]

On my 2003 roadster I'm running Z06 wheels with 265/40ZR17's and 295/35ZR18s with no issues.
graham

 

[Ntmd8r]

As Riley said, you want a difference of about .5" in tire diameter (front to rear),
so the computer doesn't get bent out of shape.

 

[Hiroki Soki]

Just curious will 345's fit on our C6 Z06 rear rims?

 

[henkz06]

345's will fit on your c6 z06 rear rims.

 

[Hiroki Soki]

Is anyone here running Nitto Invo's on their cars?. If so how are you liking them?

 

[theboss]

All the electronique wont be affectyed by the width (about 1/2 inch of difference). My concern is about the diffence in diameter that is over 5%. Normaly you try to stay under 3%, with 5.1%, I am not sure of how abs or traction control may react or react to fast. Go to this web site and enter both sizes, you will see the difference. You can also enter the 2 oem sizes to get the oem difference in diameter and rotation/miles from front to rear then enter the new sizes. ww.tiresize.com/comparison

On my car, I would not switch tire size unless the difference in diameter isint bigger than the difference between a new and a worn out tire.