Wheel size for 2005 Z4 2.5i

[Z4owner23]

Can someone tell me if upgrading my Z4 e85 wheels to this size okay? It’s an18” BMW oem style 268 from 128i/135i

Front: 18x7.5 et49 215/40/R18
Rear: 18x8.5 et52 245/35/R18

Thanks.

 

[Panta Rhei]

They will fit, but fronts will get inside the car for approx 8 mm.
And these are not proper tyre sizes for e85, but they sure will do

 

[Mr Tidy]

Yes, as Panta Rhei says they will fit, but they might look better with some spacers.

Standard sizes for E85/6 staggered 18s like 1083, MV2s, etc. are 8Jx18 ET47 front with 225/40 tyres and 8.5Jx18 ET50 rears with 255/35 tyres.

You can get an idea of how they will sit here:- https://www.willtheyfit.com/

 

[patriot66]

According to t'internet BMW Style 268 (Part No. 36116780907) are 7J x 16 ET 31 wheels. Fairly sure these will not fit over the brake calipers :?
http://www.bmwstylewheels.com/bmw/268