18" Staggered on 2003 Z4 - bad idea??

[ProudAg04]

Can somebody tell me if I can expect to run into any issues by replacing my 17"x8", 225/45 wheels/tires with the following:

18"x8" with 225/40 front
18"x8.5" with 255/35 rear

The ones I'm looking at are OEM 5-spoke wheels and I am replacing some 10-spokes.

Thanks!

[TyKBlue82]

What are the offsets of the wheels you want to run?

[samger2]

If you're using the correct offsets you should have no problems whatsoever. That's the exact sport package size for the Z4.

[ProudAg04]

The 10-spoke that I have now are 47mm offset and I've searched but I can't figure out for sure what the offset is on these. Below is a picture of the ones that I am looking at buying. Can anyone tell me what it is off hand?

http://images.craigslist.org/3nc3ma3of5O35W35U6a8eb78bf695954f18fc.jpg

[samger2]

I dont' see any pics...maybe it's my computer at work. But am I understanding that you're using OEM Z4 5 spoke wheels?

[ProudAg04]

I don't know what they came off of originally. All I know is that they are 3 series. Here is the link to the ad on Craigslist with pictures:

http://houston.craigslist.org/pts/1902081540.html

[samger2]

ahhh...gotcha.

well, those appear to be the Star Spoke 189...they should be a 34mm offset up front and a 37mm offset in the rear. The Z4 with the same staggered setup calls for a 47mm offset in the front and a 50mm offset in the rear.

Read this info on offset from tire rack's website...it should explain it pretty well for you:

http://www.tirerack.com/wheels/tech/techpage.jsp?techid=101

15 and 13mm difference in offset is fairly large IMO...the wheels may require spacers for them to fit properly, or look good.

[Dubbedown]

you'll be fine, it'll sit nice and flush with fenders. you won't rub on rears, but you MAY rub on fronts if you go full-lock. just make sure you don't go taller than a 40 profile