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

[pr0craztinazn]

I picked up a '90 325is with Ground Control's street/track coilovers, and I'd like to know if you're aware of how wide a wheel I can run in a square fitment with no fender pulling using 225/45/15 BFG Rivals and with what offset. The Miata guys run them on 9" wide wheels, but I don't think those clear late model rear fenders without a roll & pull, and my measurements show I'd need +12 to +15 offset to clear the front struts. 15x8 +20 would be safe, but the tires yield more grip when mounted on 15x8.5s or 15x9s.

8" is the practical limit. But if you want to push it, 15x8.5 +17 could just work with a rear fender roll and front camber plates.

To follow up: Ruff Racing R358s need at least 7mm of spacers to clear the front caliper brackets. I wasn't willing to deal with that because I didn't want a crazy amount of poke, so I sold the wheels. 15x8.5 +17 fitment does not work with this particular wheel.

[Helical]

Would a 16x7.5 et35 and 16x8.5 et25 size wheel fit and if so, what size tire? Thank you

[INDYSUPRA]

Has anyone ever ran a 15 x 10? I want to put a 245 – 40–15 on my road race car, I see a lot of mention of it but not sure if anyone has done it. I'm looking at the 949 racing wheels and then running hub centric spacers.

[Stanley Rockafella]

Taken from a thread I started.

Can I run 205/60/15's on a set of 15x7's with an offset of 27?
Suspension is totally stock. Car is 88 325is. I'm a little concerned with the tires clearing the front strut housings.

I'm looking to run them with no spacers (if possible) with no rubbing when turning, etc.
I used to have a set of 16x7.5 Borbet type C's that would scrape against the strut housings when cranking the steering wheel to the ends.

thanks in advance.

[4ce30]

The rear would still rub occasionally. 215/35 or 225/35 wouldn't rub.

Or, swap the wheels front and back. Especially if the car has M front mounts or camber plates. Then you can fit big rubber front and rear.

Thankyou bud! You have made me look like a genius when it comes to fitting new wheels on my vehicles the past decade! If I become a millionaire I'm sending you on a vacation!

[kicker]

OK, I need to ask the oracle.

'85 318i, currently with stock springs and 195/60R14 on bottle caps. Top of tire to fender gap is pretty large at 90mm front and 70mm back. Looking to go with H&R race, Bilstein sports and trying to pick new wheels & tire size. Prefer not to roll fenders, but I'm not completely opposed.

The tires I want come in 205/50R16 or 195/55R15 for close to stock rolling radius.

Looking at:
Klutch SL1 16x8 ET15
Enkei 92 15x7 ET38 or 15x8 ET25
Enkei RPF1 16x7 ET35

Any problems with the Klutch on 205/50R16 or is one of the Enkei wheels a better option? With E90 hats or stock?

[Mystikal]

How about 5mm less so....
Front18x8.5 et30& Rear18x8.5 et20 w/ 215/40?

The rear would still rub occasionally. 215/35 or 225/35 wouldn't rub.

Or, swap the wheels front and back. Especially if the car has M front mounts or camber plates. Then you can fit big rubber front and rear.

[4ce30]

E36 m3

How about 5mm less so....
Front18x8.5 et30& Rear18x8.5 et20 w/ 215/40?

[Mystikal]

which spacers for 17x8.25 et32?

10mm all around.

[Mystikal]

Hi Mystical, trying to find tire sizing for 16x8 et20 and 16x9 et15 staggered setup.

Much appreciated.

205/45 square fits perfect in the back and front. If a matching stretch is absolutely necessary then run a 195/45 front.

[Mystikal]

So my e30 came on xxr 527 15x8.25 et0 with 195 tires on it....im on my winter wheels now but im wondering how much wider i can go on the xxr tires....i have fender flares if i need them. Suspension is h&r race. Am i jusy better off finding wheels with the right offset? Car is an 87 is. Thanks

Definitely throw out those wheels and get something that fits an E30 well.

[Mystikal]

Hey man, Is it possible to run a 225/50r16 on style 5 et23 running on 18mm fr and 20mm rear adapters?
Lowered on hr springs (1.6) drop all around. I will be rolling the fender and possibly pulling a little.


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Not even close.

[Mystikal]

Looking at a set of borbet type As 16x7.5 et30 and want to run a nice meaty sidewall with h&r sports. Ideally Id like to leave my fender unrolled but if I have to thats not too bad. Anyone have any recommendations as to what size spacers I'll need to run?

10mm spacers all around with 225/45/16 tires would be great. You need the spacers to clear the front struts.

[Zeemz]

I'd run 5mm rear only. It'll be at the limit of fitment like that, and match the front well.

Awesome. Thank you again!


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[Mystikal]

Have a e36 M3 and I have Front18x8.5 et25 & Rear18x8.5 et15. Looking to have it low and wondering what size tires. No roll yet and if I don't have to that would be awesome thanks

Definitely need to roll for those rears. 215/35 is going to be your upper limit for tire width.