[wcl4]

Anyone know the proper offsets for an 18" 8.5 front and 18" 9.5 rear?
Thanks.

 

[Antroiny]

Tire sizes will be the determining factor as to whether a rim will fit or not, but to be safe, you should be OK with +35 - +38 on the fronts and +40 - +46 on the rears.

 

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Ditto Antroiny. Offset varies depending upon wheel width & the design to an extent. Basically due to the unique fitment of a BME 3 series, anything listed for the 3 seriesshoudl have the proper offset.

More info is in our TECH section as well:

http://www.tirerack.com/a.jsp?a=BN4&url=/about/techcenter.html

 

[wcl4]

Let me be more specific then, I was looking at a set of Fikse FM10 18x8.5 up front and 18x9.5 in the rear with 44.5 and 50.8 in rear 235 40 tires up front and 265x35 in rear. My car has not been lowered in any way except for the OEM sport package. I could always change the tires if that would help make the rims fit without rubbing. Thanks in advance.

 

[Antroiny]

You should be fine with those offsets, you won't rub at all. They sound a little high, so there's a very slight chance that they may rub the suspension if you decide to change from stock OEM suspension to coilovers, but installing spacers would eliminate that problem.

I'm a huge fan of Fikse wheels, so I say "Grab 'em!"