tires for 17x9?

[biggie]

To be clear Duffman, post up your offest. Looks like you have the 5 lug FNs so would be higher offset than the +12 P45/Grid that most are talking about.

[ka-t4u]

so 275's are overkill on a ka?? i just got p45's and they came with 215/40 up front which are really stretched and i don't like because am not slammed... and they have 235/45 in the rears which kind of look like a baloon to me...lol i was planing on 235/40 up front and 275/35 in the back.... yes?? no?? too much?? am only on lowered springs and i want the widest tire i can fit, the specs on the p45s are the usual 17x9 +12 offset

[biggie]

I just have the 235 all aound on my p45, but wanted to rotate, not sure what I can even fit on the rear with coilovers. Front definitely doesn't need to be larger than 235 due to rubbing issues.

[ka-t4u]

got it! so 235's are good in the front, what about the rears? would 275's slow me down? cost me more gas mileage?

[Gabes13]

I like the way 235/40 and 255/40 looks for a decent fitting staggered setup. 275 would look silly on a 9j

[biggie]

I like the way 235/40 and 255/40 looks for a decent fitting staggered setup. 275 would look silly on a 9j

Depends on sidewall. I have 265/30 on a 8.5 wheel and doesn't look too big. Most people are running 275/30 on it. But its a 19" and on a G35. But for an S13, yeah I'd stick with 255/40, I may go up to that when I need new tires, because my 235 in the rear can't handle 1st gear boost very well.

[ka-t4u]

why would it look silly?? and wouldn't 255/40 have a pretty big sidewall?? the 235/45's rubbed in the back of my car... and a 255/40 is an even bigger tire with an even bigger sidewall...

[Gabes13]

255/40 has a smaller diameter and smaller sidewall than 235/45. Personally I think 275/x fits best on a +10", but that's just me. I feel like anything extra width turns into sidewall, but like biggie already said, it really depends on sidewall and wheel diameter.

[ka-t4u]

got it chief then i'll probably stick to 255.... gotta go back to tire rack and re learn how to read tire sizes, i thought the 40 was the percentage of the 255 that turns into side wall

[Gabes13]

i thought the 40 was the percentage of the 255 that turns into side wall

It is. 255 x 0.40 < 235 x 0.45

[poshatch]

i thought the 40 was the percentage of the 255 that turns into side wall

i never knew this!

for some reason i thought that a 40 sidewall was a 40 sidewall no matter what it was on

also for some reason the sidewall on 275 30 looks thinner than the side wall on a 195 40

i mean if you do the math they should come out to be roughly the same...

although i heard this was true i never really could fathom it...anybody got a reason as to why they look different? is it me just being a horrible judge haha

[biggie]

Each tire is also going to be a little different on sidewall though too. So you'd have to be looking at the same brand and model of tire to compare correctly.

[poshatch]

Each tire is also going to be a little different on sidewall though too. So you'd have to be looking at the same brand and model of tire to compare correctly.

oh ok that would explain it...cause i always figured that the sidewall was never really an exact measurement

thanks for the input that helps haha

[duffman1278]

Heres 225/45/17 again but with Federal tires instead of falkens.

VERY little stretch

[biggie]

Since I hadn't added mine and it keeps getting bumped.

235/45/17 on the 17x9 +12