ASK ALL WHEEL/TIRE FITMENT QUESTIONS HERE - The Official Wheel/Tire Fitment Thread

[Mystikal]

Here's a hypothetical again: 17x7.5 front with 215/40 and rear 17x8.5 with 245/35, ET 25 both ends. Yay?

Possible with a heavy rear roll and stiff suspension. I'd probably bring the front to ET20 just to balance it a bit.

BTW this is officially it for me guys. I'll be back the week of the 23rd!

[318isbmw]

What do you think about a 16x8 Rota rb. ET20 it looks like. I'd like to see the widest tires I can fit on them. I'm cool with pulling the fenders a little bit to fit the widest possible. Any suggestions? I see 225/45r16 has been used before, can I go wider?

Thanks Jay!!

[jackbenny]

What do you think about a 16x8 Rota rb. ET20 it looks like. I'd like to see the widest tires I can fit on them. I'm cool with pulling the fenders a little bit to fit the widest possible. Any suggestions? I see 225/45r16 has been used before, can I go wider?

Thanks Jay!!

These aren't the best pictures but I am running 16X8 Rota RB ET20 with 245/45r16. The rear fenders are rolled flat and the tire will rub at full compression (hits the inner fender). The fronts will rub the inner fender at full steering lock (massaged with hammer) and the tire will graze the strut assembly. 3mm spacer would help that if bothers you but mine just polished the paint. Again YMMV.

car is sitting on Bilstein BTS springs and struts in these pictures.







Car is currently getting a C3Motorsports Coilover installation right now so here is a picture of the back with the control arm jacked up a bit.



225's are more friendly but since i struggled to find much 245 information I thought I'd post these up for you to help in your decision. Sorry if the pictures are too dark.

[daniel]

What do you think about a 16x8 Rota rb. ET20 it looks like. I'd like to see the widest tires I can fit on them. I'm cool with pulling the fenders a little bit to fit the widest possible. Any suggestions? I see 225/45r16 has been used before, can I go wider?

Thanks Jay!!

the 245/45-16's in jackbenny's post have too large of a diameter. unfortunately there arent 245's with the proper diameter, and i have only found ONE tire that comes in a 245/35-16, which is slightly smaller (making your car slightly lower, making the speedo read higher). Those tires are the Toyo T1R. I currently have the 225/40-16 Toyo's on my 16x8's and they are great tires. once they wear out, I will be stepping it up to the 245's.

and to jack benny: assuming you have directional tread, your tires are on backwards unless you plan on driving in reverse all the time ;)

[jackbenny]

the 245/45-16's in jackbenny's post have too large of a diameter. unfortunately there arent 245's with the proper diameter, and i have only found ONE tire that comes in a 245/35-16, which is slightly smaller (making your car slightly lower, making the speedo read higher). Those tires are the Toyo T1R. I currently have the 225/40-16 Toyo's on my 16x8's and they are great tires. once they wear out, I will be stepping it up to the 245's.

and to jack benny: assuming you have directional tread, your tires are on backwards unless you plan on driving in reverse all the time ;)

Nah, that was the first tire on the stack and i wanted to see what the fitment looked like with the new coilovers. 50/50 shot I would have grabbed the right one. The car is back to sans wheels again while i put the calipers back on and then move my way to the front again.

It is true that the diameter is incorrect. Luckily my speedometer doesn't work. But like you said, tire choices are limited.

Personally if i could do it over again, i would have gone 225's still just as beefy, but would fit a lot better.

That being said, i have some 17's on order that will allow me to step down to 235's and I think that might be the best compromise.

[kimmelks]

Any Info on these?

http://seattle.craigslist.org/tac/pts/1026534540.html

Anyone have any information on this style of wheels? Would they fit with adapters? If so, what kind would I need?

[daniel]

http://seattle.craigslist.org/tac/pts/1026534540.html


Anyone have any information on this style of wheels? Would they fit with adapters? If so, what kind would I need?

expired post.

[daniel]

double post

[graphikg]

I have Konig remembers with 7" width. My fenders are rolled. I was looking at hancook rs-2 but I think i am going to go with the Khumo Ecsta XS in 215/45/16. Would that be good tire wise and fitment? The issue I am most worried about in this tire is tread wear.

[daniel]

I have Konig remembers with 7" width. My fenders are rolled. I was looking at hancook rs-2 but I think i am going to go with the Khumo Ecsta XS in 215/45/16. Would that be good tire wise and fitment? The issue I am most worried about in this tire is tread wear.

that size will fit fine. in terms of treadwear, that depends on your tire pressure, suspension setup, and the treadwear rating of the tires you buy.

[M40_316i]

15x ET12 psi?

Mystical hi again,

I've got a strange question. I bought the 7X15 ET12 wheels for my E30_M40 and put 205/55/15 tyres. The tyre is Continental Premium Contact 2. My question is what pressure must have the tyre, (front and rear). The owners manual says the pressure in psi, but the offset of my wheel is different. I have BLINSTEIN SPRINT (yellow) and APEX springs 3cm lower.
I know that the question is a little strange, so if you don't know i don't mind. Thanks for your time anyway...

Alex

[daniel]

Mystical hi again,

I've got a strange question. I bought the 7X15 ET12 wheels for my E30_M40 and put 205/55/15 tyres. The tyre is Continental Premium Contact 2. My question is what pressure must have the tyre, (front and rear). The owners manual says the pressure in psi, but the offset of my wheel is different. I have BLINSTEIN SPRINT (yellow) and APEX springs 3cm lower.
I know that the question is a little strange, so if you don't know i don't mind. Thanks for your time anyway...

Alex

the offset doesn't change the tire pressure you should run.

[M40_316i]

the offset doesn't change the tire pressure you should run.

thanks daniel!

[Jim Lepage]

I'm shopping lips and bolts for my BBS RS's and wondering if I go:

-15x8 et12 and 15x8.5 et06

or

-15x8.5 et06 and 15x9 et00

Here's 15x8 et12 and 9x15 et03




I need your opinion.

[JonFreyr]

15X8,5 ET10 in front and 15X9 ET00 in rear would be pretty fu**ing sweet. No doubt there !

I have a similar question, looking at buying 16X8,5 for front and 16X9,5 in the rear but wondering which offset to go for. Front would be ET10 or 15 but wondering what to do about the rears. My car is lowered 60/40 and it´s a Touring (if that even matters). I am a noob when it comes to buying wheels, that being said :) my goal is to avoid using spacers.

Has anyone here got a setup like the one I mentioned?