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[Hokie 335i]

So I've decided to convert my stock 189's to winter duty and purchase a set of Miro 942 18x8.5" rims. I figured the square setup will allow me to rotate the tires once I burn through the staggered set I will be putting on now (moving over from the 189s). I've also read that I can get a staggered look on a square setup by running spacers in the back. What size spacers would you guys suggest I run with 8.5" rims in the back (35 offset) on an E92 335i?

[SV Concepts III]

Good choice on the wheels, very clean design. For the rear wheels, I suggest a 15mm spacer to make it flush. You can also wait to mount the wheel and tire and measure the distance between the tire and fender.

[deanmc]

An 8.5" width wheel with ET 20 is approximately equivalent to a 9.5" width with ET 33, so I'd say you could probably even go with a 20mm spacer if you'd like.

[Hokie 335i]

Originally Posted by deanmc

An 8.5" width wheel with ET 35 is approximately equivalent to a 9.5" width with ET 33, so I'd say you could probably even go with a 20mm spacer if you'd like.

I'm not that familiar with how the offsets are measured so how does that work? I thought an offset of 33 would push the wheel out 2mm (vs 35) and having a 9.5" vs an 8.5" wheel would push it out another 13mm so wouldn't that make your 2nd case 15mm further out than the 8.5" I'm looking at?

[Hokie 335i]

Originally Posted by Nick@Jlevi SW

Good choice on the wheels, very clean design. For the rear wheels, I suggest a 15mm spacer to make it flush. You can also wait to mount the wheel and tire and measure the distance between the tire and fender.

Thanks for the suggestion, I'll probably wait and measure it. I was never really bothered with the stock 8.5" rims (don't know the offset on the 189s) so maybe I won't even need spacers?

[deanmc]

Originally Posted by Hokie 335i

I'm not that familiar with how the offsets are measured so how does that work? I thought an offset of 33 would push the wheel out 2mm (vs 35) and having a 9.5" vs an 8.5" wheel would push it out another 13mm so wouldn't that make your 2nd case 15mm further out than the 8.5" I'm looking at?

Sorry, what I meant was an 8.5" width with ET 35 PLUS the suggested 15mm spacer (making it ET 20) would make it approximately equal to 9.5" ET 33 on the fender side, which is a mildly conservative setup.

Sorry for the confusion.

[david @ eas]

We've got a great Spacer DIY right here, feel free to check it out:

▀▄ eas | Macht Schnell Competition Wheel Spacers DIY Instructions
http://www.e90post.com/forums/showthread.php?t=332063

That should help out!