What tire sizes are recommended for a Chevrolet Corvette C6?

To give you the exact right setup, I need to know if you have a Base (narrow body) or a Grand Sport/Z06 (widebody), and whether you are running the factory 18/19-inch wheels or an aftermarket setup.

Assuming you have a Base C6 on factory 18x8.5 front and 19x10 rear wheels, here is what works:

• Factory Setup: 245/40-18 for the front and 285/35-19 for the rear ².
• Maximum Width on Stock Wheels: You can safely step up to a 265/40-18 in the front and a 295 or 305 in the rear without rubbing the fenders ^{1 2}. Going beyond a 265 on the factory front wheel isn't recommended ⁴.

If you are upgrading to an aftermarket 19-inch front and 20-inch rear setup, common reliable sizes include:

• Standard 19/20 Fitment: 245/35-19 (Front) and 285/30-20 (Rear) ³.
• Slightly Wider: 255/35-19 (Front) and 295/30-20 (Rear) ³.

Crucial Warning on C6 Tire Sizing: Whatever sizes you choose, you must maintain the factory front-to-rear overall diameter ratio. If you change the rear tire diameter without matching that change on the front, the computer will think the rear wheels are spinning at highway speeds. This triggers a "Traction System Active" warning on the dash, and the car will actively cut power when you try to accelerate over 65 mph ^{3 4}.

Let me know your exact trim and wheel dimensions if you need a more specific recommendation, or if you're trying to put together a dedicated track or drag pack.