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

[ACHTUNG]

1 inch = 25.4 mm

So 23-25.4= -2.4mm

I've had a long day so check my math. :yawn:

Your math is correct but is that right? The new offset would be et -2.4???

[asuj158]

Needs massive spacers, 25mm all around minimum to look decent.

fuuuuuckkk

[dhcg86]

They need spacers. 15mm all around is ideal. 225/45 can fit all around. Try rolling on them to see how bad the flat spots vibrate (put them on the rear).

is there any benefit to running spacers? any downside?

the wheels were 250 so an easy sell. I dont want to spend 500 on tires only to find its not optimal fitment

[mightywhitey]

17x8.5 Et-7 on E34. Thoughts?

[Mike30e]

Quote:
Originally Posted by Mike30e
Looking to change wheels, currently running 16's on Bilstein HD's with H&R Sports, want to got to 15" Alpina's. What is the difference in going to a 15x6 front, 15x7 rear rather than all 15x7? Is it only cosmetic? What is the best size tire combo for this?

I wouldn't go with 15x6 fronts. 15x7 all around minimum, and 205/55 or 225/50 tires.

What is the drawback to running 15x6 in the front?

[E30_Pare]

17x8 +0 all around? How do I make it work.

[MrAdam]

Just picked up some wheels, Gonna slam, camber etc. I plan on tucking tire in the rear a little. any advice on tire sizes??

BBS RS
16X8.5 +10
16X9.5 +15

I was thinking
205/45/16
215/45/16
any thoughts?

[camip]

15x8 +10 offset
Early model on hr race springs. Also what's a good tire size.

[Mr_Tripp]

17x8.5 Et-7 on E34. Thoughts?

Bump Interested to know how this fits also will 18x9 ET-4 on E34

[dhcg86]

They need spacers. 15mm all around is ideal. 225/45 can fit all around. Try rolling on them to see how bad the flat spots vibrate (put them on the rear).

17.5J x16 ET 35, borbet type Cs.

Can I do any wider of a tire with 20mm spacers?

Should I just get a wider wheel set? Or even a staggered set?

[cabriodster87]

What are tire size options for Bcaps other than 195/65/14? Could 215/60/14 be the only possibility?



meaning the circumference will be very close, with a wider tread.

[Nick's e30]

Looking at Borbet Type A wheels
16x7.5 et +20 all around for now, unsure of 16x9 offsets
Car rides on German Engineering Coilovers, Bilstien Sport Struts

Going for a flush look. Recommend spacers or good as is? Also, unsure of the appropriate tire size. Was thinking a 195-45-16 or 195-40-16.
Also, cannot roll fenders. Super rusty northern car with horribly rusty fender.

Thanks,
Nick

[Mystikal]

is there any benefit to running spacers? any downside?

the wheels were 250 so an easy sell. I dont want to spend 500 on tires only to find its not optimal fitment

The benefit is that you can actually mount the wheels. Downside is they cost money.

[Mystikal]

I don't know why my brain can't figure this out but here's a 3-piece wheel scenario for you to help me calculate:

The 3-piece wheels are 16 X 7.5 et 23 with 1" lips. What would be the new wheel offset if I added 2" lips?

Using an online split rim offset calculator I came up with the new wheel width as 8.5" and the offset would be et 10.3. Did I calculate this correctly? If so, how would this new width and offset fit on a late model 325i?

16x8.5 +10. Excellent fitment.

[Mystikal]

Got an '89 325i on stock suspension. Looking to get the ESM-002R 16x8 ET20 all around with 205/55/16 tires.

I'm assuming this setup will bolt on and work fine?
Will I be able to fit H&R/Bilstein Sports without rolling the fenders with this setup?
Would the 205 on the 8" wheel look too ridiculous? Seems like a moderate stretch.

I decided against the 15x8" ET15 as it seems a bit aggressive and would require rolling for a moderate drop even with 205s. Am I correct in my thinking?

Thanks!

205/55 is too tall. 205/50 is what you want. You would barely see a stretch, if at all.

The 15" setup is definitely more aggressive and would require a roll.