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

[Mystikal]

On this note, am I going to need spacers for my 225/45-15 Hankooks on my C1s? I'm looking at my current 205's and I've got maybe 3-5mm of clearance. I'l also lowered on the Cosmo kit, about an inch from the bottom, and I have the M3 CABs.

Nope, they will fit fine.

[Mystikal]

I am not scared or intimidated by fender manipulations :)

however the extra weight makes me wonder- if you take that and the 10 dollar difference out of the equation would you rather run the 15x8 or the 15x7?

also at about the same price there is the Team Dynamics Pro race at 13.2 lbs and the Dforce LTW (bav has bronze at 99 bucks) at 13.0lbs even

15x8 for sure if your goal is grip. The steering and transitional response alone is worth it, let alone lateral grip.

[Mystikal]

A set came up locally for sale for $180 in great shape. Might still pick them up. What size tire would you recommend? I have a set of 205/55/16 laying around.. Thanks for your help!

Those tires will scrub the inner front fenders, but if they're worn enough it won't be too bad.

With 15mm spacers I'd recommend any of 205/50 215/45 225/45.

[Mystikal]

I am really looking at the sportmax 501 - at 15.5 lbs in a 15x8 they seem like a good deal. 350 shipped for a new set of wheels that seem to hold up to abuse well.

the ones I was looking at were et15. My question is this. where do you guys get your rubber? cause tirerack doesnt carry a 225/50-15 star spec and niether does onlinetires.com

I am a little lost. Thanks.

99% sure that size is not available, at least in NA.

Also, to run that size on that wheel you're looking at moderate fender pulling (passed rolling).

[Mystikal]

Hi Mystikal, I´d like to fit these wheels on a stock (for now) suspension, late model E30. I´m not sure of the offset. I wouldn´t be surprised if that number is in your memory bank. It´s a staggered set, tires are 235/40/18 F (8 inch) and 255/40/18 R (9 inch). I was planning on using the 4-to-5 lug adapters someone sells here. Fender rolling seems kind of obvious and flaring wouldn´t be an issue. I´m only concerned about overall diameter. What do you think? Can it be pulled off?

Then there´s a second E30, with bilstein sport and vogtland springs in which we want to achieve an aggresive stance. Sticking out a little, some fat (as in wiiide) rubber, kind of like the pic kreasims posted, just not necessarily stretched or with that much camber. What are some good options on 15 or 16inch? Not talking about styles or brands, but measures (offset, width, tires, spacers). Which is a good and not overly-expensive route to go? Thanks a lot for all you´ve been doing to the E30 community!

18x8 +47 18x9 +26

E46 M3s have a huge rear-bias when it comes to wheel fitment (flares). Once you add the adapters in the rear they will poke outside of the fenders, and require something like a 205/35/18 stretched on along with plenty of fender rolling and sky-high spring rates. Not exactly what you're looking for.

For the second car, 15x8 or 16x8 with an offset close to +20 is perfect. You can then mount a 225/50/15 or 225/45/16 with a healthy fender roll. If you really want to push it go for the Apex ARC-8 (which I helped spec, shameless self plug) in 17x8 +25 - you can get a 235/40/17 on there easily, even a 245/35/17. All of the sizes listed are for all 4 corners, as it should be.

[u3b3rg33k]

15x8 for sure if your goal is grip. The steering and transitional response alone is worth it, let alone lateral grip.

So if you can fit a 225/50/15 on a 15x7 et25 wheel (with the tire being the widest part), why can't you throw the same tire on a 15x8 wheel and have it fit without rolling / pulling? Is it just that there are no wheels with the right offset, or am I missing something?

[LancE30]

5 series fitment on e30??????

i would like to put rims from a 92 5series on my car, but idk if the offset is compatable with my e30. please helm me! (they are like a basket weave but have a 1 inch lip and are 16 inch)

[Mystikal]

So if you can fit a 225/50/15 on a 15x7 et25 wheel (with the tire being the widest part), why can't you throw the same tire on a 15x8 wheel and have it fit without rolling / pulling? Is it just that there are no wheels with the right offset, or am I missing something?

For every 0.5" of wheel width added, the overall width of the mounted tire increases ~0.2". So a 225/50 that is 9.3" wide on a 7" rim becomes 9.7" on an 8". Huge difference when you're already cutting it close.

Beyond that, a 15x8 +25 wheel will not clear the front struts, even without the tire mounted.

[Mystikal]

i would like to put rims from a 92 5series on my car, but idk if the offset is compatable with my e30. please helm me! (they are like a basket weave but have a 1 inch lip and are 16 inch)

E34 basketweaves are all 15" as far as I know. Those must have originally been off of another chassis.

You can't mount them without either redrilling them to 4lug or swapping your suspension out for 5lug.

[Gadea]

Ok, that's one plan down the drain...great to know before-hand, though!!
Thanks, Jay, you're the man!

[u3b3rg33k]

For every 0.5" of wheel width added, the overall width of the mounted tire increases ~0.2". So a 225/50 that is 9.3" wide on a 7" rim becomes 9.7" on an 8". Huge difference when you're already cutting it close.

Beyond that, a 15x8 +25 wheel will not clear the front struts, even without the tire mounted.

I hadn't thought of that.

On pavement, given the same tire model and 7" wheel, I'm generally still better off with a 225 than I would be with a 205, yes?
(warning, saying no may hurt my brain)

[rav320uk]

What would be needed to fit
RS 003's origional ET on a 7j wheel of 25.
These have been built out to 9.5j rears and 8.5j fronts.

Rav

[LancE30]

i saw e30robs spacers andit sparked my curosity for these.

[LancE30]

has anyone ever put these on an e3o??

[Mystikal]

I hadn't thought of that.

On pavement, given the same tire model and 7" wheel, I'm generally still better off with a 225 than I would be with a 205, yes?
(warning, saying no may hurt my brain)

lol...yes and no. You will gain lateral and longitudinal grip, but the wider-than-optimal wheel to tire ratio will slightly dull response time. Still worth it to me (I run 225/50 on my 15x7's).