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

[Yonkers320is]

17x7.5 et20, what tire size recommended? some people told me 215-40/17, others 225-45/17. I have 91 325 on billies and H&R sports...

[Edirtyy808]

17x9.5 17x11 et-13 all around. (negative offset) how much will it stick out?

[Mohit]

If I wanted to run e38 Style 5s (filled and redrilled), 16x8 et23, what else would I need to make it work? Do I need 10mm spacers? Do I need to pull any fenders? I want to achieve the same look as the April COTM, Neil's e30.

[JinormusJ]

Neither would fit as the wheel is so far out. You need an undersized tire. 185/55 or 195/50 max.

Funnily enough, I checked the original et on the wheels, and it's actually 30, not 20.

That leaves my final et coming out to 12f and 10r with the spacers I'm interested in.

Would 185/65 now work in this case with a roll?

[janders211]

1991 318is, H&R pro or race. Willing to do minor fender rolling. I want the most tire possible.

Questions:

1. Can I run Continental race slicks sized 225/40/17 all around (these run wide…near 245 width)? If so-what width/offset 17 (they run square-ish on 8-9” wheels).

2. I want to run the most street tire on n 16s or 17’s. What sizes/offsets to get most tire with my setup.

Thanks!

[DatUtahGuy]

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

General knowledge question, what is the size difference between a 205/40/17 and a 215/40/17 in terms of sidewall size. I am pretty low on coilovers and don't want to rub on the back. Anyone with this setup have knowledge?

[janders211]

General knowledge question, what is the size difference between a 205/40/17 and a 215/40/17 in terms of sidewall size. I am pretty low on coilovers and don't want to rub on the back. Anyone with this setup have knowledge?

4mm

The numbers tell you what the sidewall side is. For example the 40 stands for 40% of the width. So a 205/40 has a sidewall width of 82mm (205mm times 40% (0.40)), and a 215/40 has a sidewall width of 86mm (215mm times 40% (0.40).

[Mystikal]

im looking into a set of 16x9 +6 with a 245/35/16 tire, i want a meaty fitment but will this sit flush with the fender and clear the strut?

Won't fit at all, too aggressive on the fender.

[Mystikal]

Help! How will this fit:

15x7 et 10? Will i need a fender roll?

Fits fine with a 205/50.

[Mystikal]

What does it take to clear 16x8 +20 / 16x9 +15 on a 91? H&R race springs.

205/45 all around, rear fender roll

[Mystikal]

I'm about to pull the trigger on ESM 002r 16x8 ET20 all around, but i'm uncertain on the tire selection.
My car is an 89' coupe on IE stg3 race springs/Bilstein sports. I want to minimize stretch (205/45 on an 8" wide wheel still looks OK to my eyes and doesn't seem unsafe, but it's at the limit IMO). I also need enough sidewall to handle the rough roads in WI. How big of a tire can I fit? What's the typical tire for these wheel/suspension specs with disregard to potholes?

Get 205/50s.

[Mystikal]

17x7.5 et20, what tire size recommended? some people told me 215-40/17, others 225-45/17. I have 91 325 on billies and H&R sports...

215/40. 225/45 does not fit.

[Mystikal]

17x9.5 17x11 et-13 all around. (negative offset) how much will it stick out?

About 1.5" past the fender in the front and 2.5" past the rears. Very ugly.

[Mystikal]

If I wanted to run e38 Style 5s (filled and redrilled), 16x8 et23, what else would I need to make it work? Do I need 10mm spacers? Do I need to pull any fenders? I want to achieve the same look as the April COTM, Neil's e30.

You will need spacers if not now, when you replace your brake pads. If you like the look of that car copy it, 10mm spacers all around and 205/45s is a good combo.

[Mystikal]

Funnily enough, I checked the original et on the wheels, and it's actually 30, not 20.

That leaves my final et coming out to 12f and 10r with the spacers I'm interested in.

Would 185/65 now work in this case with a roll?

Still a bit too tall for the front if you're lowered. I'd recommend 185/60 or 195/55.