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

[MikeM]

Setup: Koni SA, ie3 race springs, e90 hats, gc sport camber plates.

Desired wheel: 15x8 et20 all corners (trm c1)

Question: What’s a good tire size that won’t rub? 215/45/15? 225? 50? Also, will I need spacers and if so, what size? Thanks!

[almostacrayon]

I just saw the work equip 40s.

Would anyone be able to help with choosing the appropriate offset in 15x8/15x9 size?
Link to the spec sheet --> http://www.work-wheels.com.au/files/pdf/equip-40.pdf

Also would you think I would be able to run a bbk if I went the standard or big brake barrel choice?

[z168]

Trying to with 16s. 16x7.5 ET25 squared set

I wanted to go with 215/45/16s but my local shop doesnt have em. Should I instead go with 205/50, 205/45 or 225/45?

I like the meaty look but dont want it overdone since the wheels are only 7.5 - any thoughts or ideas?

[Zaxer]

As I have not received any answers on my inquiry a few weeks back, I have gone to the web for an answer (most of my searches come back here LOL). While I haven’t definitively found an answer, I have found this website useful for general wheel/tire inquiries:

https://www.wheel-size.com

I especially found this page useful for a great visual reference:

https://www.wheel-size.com/calc/

You can input your current tire and wheel specs (even input dimensions for fender, wheel well, strut clearance and even scrub radius) and then input a new tire and wheel spec to compare side by side.

Certainly helped me out and hopefully helps you.

[Staszek]

Question for forum: gotta cherry set of 17x7 style 5 wheels. I know I need adapters,what size tire will fit without rubbing. I’m planning onslightly lowering the car with h&r sports and Bilstein shocks. Advice?

If they are E39 Style 5 wheels they are 17x8 and the offset is 20mm. With Adapters you will be at ET 2, which is pretty aggressive. You will need a pretty thin tire to not rub.

[WynneDeeFanchon]

I think ET 0 is going to be way to aggressive to fit 225's. I could be wrong but they are going to poke out like crazy. I had poke on an Et18 with 225/45/16

Also you have the wrong tire size. Your diameter is an inch smaller then stock, although I have seen people run the 225/45R15 for autocross but its really the wrong size, 225/50R15 would be correcft upsizing for the speedo.

That being any of those tires will look odd with a zero offset (well to me anyway I hate that crazy poke)

Noted. I may just turn the rims over for a profit since I got such a good deal. What if I were to go 225/45/16. That's the same diameter. What rim width/offset would work for fitment without rolling fenders in that case?

[Staszek]

Okay I've dug and dug. I currently happened across a cheap set of XXR527 15x8.25 et0. Well I want to fit 225/45/15. I like the XXR look but I would have no problem getting rid of them if need be. What wheel width/offset would you recommend for no fender rolling or pulling for that tire size? Say I'm on ground control coilovers. Not slammed but lower than stock. Im always open to different rear offsets. I want the widest stance possible front and rear with no fender work.

I think ET 0 is going to be way to aggressive to fit 225's. I could be wrong but they are going to poke out like crazy. I had poke on an Et18 with 225/45/16

Also you have the wrong tire size. Your diameter is an inch smaller then stock, although I have seen people run the 225/45R15 for autocross but its really the wrong size, 225/50R15 would be correcft upsizing for the speedo.

That being any of those tires will look odd with a zero offset (well to me anyway I hate that crazy poke)

[Lenwood]

17” style 5 on 87 325

Question for forum: gotta cherry set of 17x7 style 5 wheels. I know I need adapters,what size tire will fit without rubbing. I’m planning onslightly lowering the car with h&r sports and Bilstein shocks. Advice?

[WynneDeeFanchon]

Okay I've dug and dug. I currently happened across a cheap set of XXR527 15x8.25 et0. Well I want to fit 225/45/15. I like the XXR look but I would have no problem getting rid of them if need be. What wheel width/offset would you recommend for no fender rolling or pulling for that tire size? Say I'm on ground control coilovers. Not slammed but lower than stock. Im always open to different rear offsets. I want the widest stance possible front and rear with no fender work.

[Das Delfin]

a question about the back - 16x9 et15 H&R race. I'd like to run a Firestone Firehawk indy500. My fenders are rolled & pulled, it's a late model. Can I fit a 205-50-16? Not really going for a stance look but also trying to autocross on these low offset wheels. 225-45 is out of my price range.

I have 225-50-16 now and they rub a bit on hard corners and incline transitions but nothing too too crazy. Will 205-50 fit or should I go down to 215-40? Or even 205-45 :/

[Garrick2007]

87 325is on H&R Super Sports

Looking to purchase Rotiform RSE 4x100 17x8

Not sure what offset I should get... 30 vs 40

Most importantly what about tires? of course I want the widest possible. What would be my ticker (sidewall) tire option then thinner option? Thank you appreciate anyone around to help!

[charltonward]

Stock fender late model
17x9" wheel in the rear.
What is optimum offset to fit a 245/40 under the fender?

[jayallen]

max rim wheel size

Have all stock 87 325 2 dr 5 speed

What is the biggest rim and tire package combos I can put on without any mods

[MPLFoster]

Anyone know the specs for an E36? Just picked up a 1998 318i sedan. Would like to know the widest wheels possible without fender rolling. Considering 16-17in wheels.

:)

[Zaxer]

Vintage 1980’s wheels

I recently rescued 4 vintage 1980’s all aluminum wheels from certain doom that are in surprisingly nice condition. I have confirmed they are 15x6 with a 57.1 center bore and 4x100 bolt pattern. Multiple self-measurements of the offset yields a et38. Would like to install 205/55/15 to fill out the wheel well (suspension on my ‘89 convertible is stock height). Not as concerned about running flush (unless this would appear too far inboard), but I do want to make sure clearance on the backside is sufficient. Any confirmation and/or advice appreciated. Thanks.