235/50/18 fit ok on the stock sedan 18" rims? Car is on stock suspension as well. Thanks

 

Yes they would. Lower profile would look better though (the 50 in those specs)

 

I think the stock size is 235/45/18. going to 235/50/18 will make a big difference in diameter (1010tires.com shows 3.42%).

Is there a reason why you want to upsize from 45 to 50?

 

no, the "50" is the % of tire in the side wall. so, this would be HIGHER profile tire, not LOWER.

and if compare OEM 245/40-18 to the proposed 235/50-18, the proposed tire is 6% larger than OEM, which is WAY over the maximum recommended diameter difference of 3%.

in other words, 235/50-18 WILL NOT FIT.

 

don't do it. not only will it look kinda FAT (no pun intended), but it will throw your speedo off for sure. use 235/45/18 and will fit perfectly.

 

sorry, forgot - OEM 18s do come with 235/45-18's.

comparing those with 235/50-18's, the 50s are 3.4% larger. still not a very comfortable situation. stick with 235/45-18. 255/40-18s looks like would fit, but i'm not sure if they would fit on a 7.5"-wide rim.

 

Thanks I will stay away from the 50. The stock rim is 7.5"? Would a 245/45/18 fit ok?

 

255's are too wide for an 18",/ 7.5" wide rim with anything under a 55 profile.

245/45/18 will fit just fine, you will get a beefier look. I don't think you'll be able to go any wider.

 

Go with 235/45 or 235/40. I went 235/45 Kumho SPT's and they are awesome. Best tire I've had. Killer grip!!!!! Trust me, I do test them

 

I never said 50 is lower profile, I said he SHOULD get lower profile, which is the number 50 I'm referring to. I'd go with 35 heh

 

it will mount ok on the wheel, but it will bulge a little. personally, I don't like that look, but if it doesn't bother you...got for it. if your tire shop is cool, they can do a test fit of that tire on your wheel and if you don't like it, you can choose another one.

 

I'm in the same boat. I have a 04 sedan 17" and am upgrading to 18" but I like the 17" F1- GS D-3 tires that came on my stock 17" and am trying to get the same tires in 18" however that tire only comes in 235/50 and 245/45, the rims I'm getting are 18 X 8 so I guess I will go with the 245/45

 

What about 245-40 on the stock 18" rims? That way you get a little more width, and lower profile than the stock set-up. Will it fit?