Ben.Reilly

Hello everyone,

quick question about wheel sizes and the cobalt ss.

I am shopping for a set of winter wheels and tires. I know the stock wheel size is 18x7.5. I have found a few sets of wheels for a good price but the majority I have found are 18x8. The tire size however are the same for both the 7.5 and 8 (225/40/18). My question is will there be any fitment issue with the 18x8? Clearance issues or tire issues?

Thanks!

Nacademus

iTrader: (2)

Do you have a TC?

Baron7700

the width will not be an issue, the clearance of the brembo's will be. Only certain designs with an extreme bend in the middle or HUGE offset, or SPACERS, will make wheels fit.

there is a thread on KNOWN fits, check that out.

tomj77

iTrader: (2)

rather go 17" wheels and 225/45, or 50/17

Baron7700

even less 17" fit the brembo's than 18

09sscalicobalt

iTrader: (1)

yup this is true! car came with 18"s stick with 18"s

tom.g

iTrader: (4)

There won't be any tire issues for sure a 225/40/18 tire will fit rim widths from 7" to 9" so you have nothing to worry about. As for the rims there aren't many that fit our cars.

09sscalicobalt

iTrader: (1)

225/40/18 is stock i have a 18x8 wheel with a 225 but when i get new tires im going to switch over to 235

tomj77

iTrader: (2)

yes but u can have more rubber

09sscalicobalt

iTrader: (1)

well good luck lol