Z06 tire size

[roadster71]

What is the recommended tire sizes for the c5 z06's using the stock wheels now that no manufacturers makes the original sizes anymore?
Thanks

[c4c5specialist]

HI there,

Yes, this is a subjective thing based on availability.

The normal sizes are fronts : 265/40ZR17 Rears 295/35ZR18

I have used the following on ZO6 without issue.

Front : 275/40ZR17 Rear 295/30ZR18

The fronts are 10mm wider but are widely available.

The rears I could not obtain in 35 aspect ratio so I went to a slightly smaller 30 aspect ratio.

These are the closest I could obtain for my customer and not create rubbing issues or inaccurate ABS or speedometer issues.

Allthebest, Paul

[ALMSGT]

I have a 2003 Z06 and have been trying to find tires. I have Michelin Pilot Sport 2 tires on it now, 265/40 zr17 in the front and 295/35 zr18 in the rear on the original wheels. I can purchase Michelin Pilot Sport 4S tires in size 265/40 zr17 for the front but this tire is not available in 295/35 zr18 for the rear. This tire is available in size 285/35 zr18 and there is only a 0.2 inch difference in diameter compared to the 295/35 zr18 tire. Do any of you folks see any problem with using the 265/zr17 tires on the front and the 285/35 zr 18 tires on the rear? Thank you.

[roadster71]

Paul,
I'm a little late with this but thanks for the information. If faced with with a emergency on the road, would mixing one of these with the oem sizes cause issue getting me home?
Thanks,
Bob

[BruceF]

...

would mixing one of these with the oem sizes cause issue getting me home?

Yes. Even the same size new tire mixed with a worn tire can cause issues with the ABS/Traction control, etc as the tires will be rotating at slightly different speeds. Always replace in axle pairs.