Upgrading to bigger 18” wheels

[carlsson]

Will these wheels fit an e85 z4?
If yes then what would be the best tire combo? :?

 

[mr wilks]

Yes they will fit & sit very well , assume stock springs E85 then any combination below
215 40 / 225 40 18 front
245 40 18 / 255 35 18 rear

 

[carlsson]

Thanks mr wilks. I’ve been wanting to upgrade but will the ride really be stiffer coming from 16in wheels? I know the z4 looks dorky with the 16in oem wheels but the ride is great with it.
Will a 17in wheel be a better compromise between ride and looks?

 

[carlsson]

These 17in style 185 looks swell in the z4 too.
If i would go with the 17in wheels...which tire would be better? 225/35 or 225/45?

 

[buzyg]

18's should be fine ride wise, on normal tyres.

 

[carlsson]

I can’t imagine how hard the ride would be if you have run flat tires on 18s... :rofl:

 

[dr_john]

I can’t imagine how hard the ride would be if you have run flat tires on 18s... :rofl:

Not quite as hard as RFT's on 19s...

That's why I went back to non-RFT's on 18s on my new zed, looks aint everything

 

[carlsson]

I found an 18inch squared set of wheels with 245/40 tires on all wheels. Will that fit the fronts or they are to wide?

 

[road warrior]

"
I found an 18inch squared set of wheels with 245/40 tires on all wheels. Will that fit the fronts or they are to wide?"

a lot of "iffs" in there, iff the ofset is -50 at the front maybe
if the suspension is standard then maybe
if you have new springs and shocks maybe

otherwise you will be grinding down the wheel arch like i did
the rear will be fine

 

[Mr Tidy]

I can’t imagine how hard the ride would be if you have run flat tires on 18s... :rofl:

"Not exactly cossetting" is how I'd describe ride quality on staggered 18s with Bridgestone run-flats! :roll:

To see what options will work this might help:- https://www.willtheyfit.com/

 

[carlsson]

Thanks Mr Tidy....will use that link.

 

[carlsson]

I’ve always liked the style 119 wheels,simple design and is easy to clean...but I never see one on a z4. What are your opinions on these? Will they look good on a black z4?

 

[carlsson]

The 119 wheels were so cheap and it has newer tires so I took the plunge. I think it looks okey on the z4. Ride hasn’t changed much too. At least now I won’t spend so much time cleaning the wheels.

 

[Mr Tidy]

The 119 wheels were so cheap and it has newer tires so I took the plunge. I think it looks okey on the z4. Ride hasn’t changed much too. At least now I won’t spend so much time cleaning the wheels.

They look good - I'm a big fan of 5 spoke BMW wheels.

And as you say they are so much easier to clean! :lol: (Unlike the MV2s my 1st Coupe had). :headbang:

 

[carlsson]

Glad somebody liked it... simple and so easy to clean
I really prefer the style 197, it would look good on any BMW...but my back would hurt cleaning that.

 

[ErrErrminator]

Another five spoke fan here. They look great OP. I love my style 189s. Tried some CSL reps, but they were not for me.

 

[carlsson]

The 189 looks great too...would have been my choice if i’d go 18s...