I know this may sound stupid but would it be ok to put a 185/75 on a 13" rim? what would be the bigger tire i could put on there without any risk?

 

i have 205/40/17's and they're fine. i have a 99 coupe

 

what i mean is i have a 13" rim and i want to know what the biggest tire i can put on it would be. i guess i really just want to match the stock size of a 98 civic which is 185/65/r14 but on a 13" rim what size tire would i need?

 

there's a 1.9% diameter difference (about half an inch)... that's less than the difference you get when you go from stock 14's to 17's with 205/40-17's... I think you'll be fine with 185/75s

 

Yes you can put a 185 on a 13 in. wheel. It's 4.5 to 5.0 inches wide. no problem.