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Spete
09-23-2007, 03:02 PM
Hi guys,

My first post here, car freak from birth and comtemplating a Z4 M Coupe. My question is what the OEM ET measurements of the 224M wheel are since I don't want to mess up the factory settings too much. Wheel size is going to be 8.5 x 19 and 9.5 by 19 with 235/40 tires front and 265/30 in the back. I'm thinking BBS.

Thanks in advance,

Peter.

Spete
09-25-2007, 11:51 AM

ebruder
09-25-2007, 05:21 PM
I just checked the owner's manual and I could not find the offset, but it is probably there. TireRack has great information on offset on each size. Try calling TireRack and get Brandon at ext. 287.

jmillet
10-22-2007, 12:07 AM
E86 Z4 M Coupe wheels ate style 224
Front is 8x18 with 42mm offset P/N 36 10 7 836 832
Rear is 9x18 with 30mm offset P/N 36 10 7 836 833

elytics
12-12-2007, 04:37 PM
i have a staggered set up on my 03 but it's the M3 wheels. So 17 * 7.5 up front & 17 * 8.5 rears. My oem ones were 17 * 8 all around. From what i remember and since the M coupe and the normal Z roadster are the same chassis the track width w/o the wheels for a non M roadster and a M roadster or coupe shoud be the same.

Based upon this the OEM 17 * 8 offset is 47mm and they sit slightly inner to the weel well.

The staggered setup that i have, the rear ones are 42mm and being 8.5" wide with 245 40 17 (9.8" wide) rubber it sits flush with the fender. I had 255's (10.2 ") and they used to rub in hard corners.

If you are going to be 19 * 8.5 at the rears then consider the width of the tyre in conjunction with the offset. For instance if you are going 42 or 40 then prolly something wider than 9.8" will rub the fender. If your offset is too low such as 47-50mm then the same tyre config will rub the shocks...
Hope this helps..


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