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2005 non M Z4 wheel and tire fitment
Posted: Fri Apr 29, 2022 6:17 pm
by Talhaaziz321
Hey, I was looking into purchasing a set of liquid metal shadow wheels with a 225/45/R18 squared setup. The wheels are 18x8 with a 40mm offset I believe. Z4 is currently completely stock. Anyone know if these wheels would fit? Rub? Stick out too much?
2005 non M Z4 wheel and tire fitment
Posted: Fri Apr 29, 2022 6:35 pm
by sars
Hello and welcome
Correct size would be 225/40/18 with 8 x 18 ET47, so they’ll stick out a further 7.0mm and be 22.5 mm larger in diameter. I’ll doubt they’ll rub but your speedometer will read slightly slower than previous.
2005 non M Z4 wheel and tire fitment
Posted: Fri Apr 29, 2022 6:39 pm
by Talhaaziz321
Excuse my ignorance but when you say stick out 7mm do you mean 7mm from the actual fender itself like in the image?
2005 non M Z4 wheel and tire fitment
Posted: Fri Apr 29, 2022 7:52 pm
by sars
Talhaaziz321 wrote: ↑Fri Apr 29, 2022 6:39 pm
Excuse my ignorance but when you say stick out 7mm do you mean 7mm from the actual fender itself like in the image?
No, not like that
just 7.0mm further out than standard, if you use the search function for spacers, I’m sure that peeps have fitted 10mm spacers to standard wheels. Are the current wheels original equipment?
2005 non M Z4 wheel and tire fitment
Posted: Fri Apr 29, 2022 8:34 pm
by Talhaaziz321
I see haha. My current set up are the stock style 104s wrapped in 225/50R16 squared. Pictures of current setup and wheels in question attached.
2005 non M Z4 wheel and tire fitment
Posted: Fri Apr 29, 2022 9:45 pm
by Mr Tidy
Standard E85/86 18" wheels like MV2s, 107s, 1083, etc. were staggered with 8J x 18 fronts running 225/40 tyres and 8.5J x 18 rears fitted with 255/35 tyres.
That square set with a 40ET ought to fit just fine. As "sars" said they'll sit 7mm further out at the front, but 3.7mm less at the rear than the OE 8.5J rears.
Link here if you want to play about with sizes and offsets:-
https://www.willtheyfit.com/index.php?w ... offset2=50
2005 non M Z4 wheel and tire fitment
Posted: Fri Apr 29, 2022 10:15 pm
by Talhaaziz321
Mr Tidy wrote: ↑Fri Apr 29, 2022 9:45 pm
Standard E85/86 18" wheels like MV2s, 107s, 1083, etc. were staggered with 8J x 18 fronts running 225/40 tyres and 8.5J x 18 rears fitted with 255/35 tyres.
That square set with a 40ET ought to fit just fine. As "sars" said they'll sit 7mm further out at the front, but 3.7mm less at the rear than the OE 8.5J rears.
Link here if you want to play about with sizes and offsets:-
https://www.willtheyfit.com/index.php?w ... offset2=50
I see. So my rear tires will sit more in and my front tires will sit more out marginally. I was hoping to have a better stance with this set and have it flush with the fenders. Would I be able to achieve that with spacers in the rear?
2005 non M Z4 wheel and tire fitment
Posted: Fri Apr 29, 2022 10:23 pm
by Mr Tidy
Talhaaziz321 wrote: ↑Fri Apr 29, 2022 10:15 pm
I see. So my rear tires will sit more in and my front tires will sit more out marginally. I was hoping to have a better stance with this set and have it flush with the fenders. Would I be able to achieve that with spacers in the rear?
You could easily achieve that with spacers on the rear without rubbing. I fitted a set of E89 OE 18" staggered wheels to my previous Coupe that sat 18mm further out on the front and 10mm on the rear than E85/86 wheels and didn't get any rubbing.
2005 non M Z4 wheel and tire fitment
Posted: Fri Apr 29, 2022 10:30 pm
by Talhaaziz321
Alright I'll see if I can go pick them up today then. Any idea if I'd need to get new wheel bolts to put them on or could I just reuse the old ones?
2005 non M Z4 wheel and tire fitment
Posted: Fri Apr 29, 2022 10:44 pm
by Mr Tidy
Original bolts should work fine, but if you buy spacers you need to buy longer bolts to suit. As in 10mm spacer needs 10mm longer bolts, etc.
2005 non M Z4 wheel and tire fitment
Posted: Mon May 02, 2022 12:15 am
by Talhaaziz321
Finally put them on and I think they look great! Thanks to Mr Tidy and Sars for helping.
2005 non M Z4 wheel and tire fitment
Posted: Mon May 02, 2022 8:44 pm
by Mr Tidy
Talhaaziz321 wrote: ↑Mon May 02, 2022 12:15 am
Finally put them on and I think they look great! Thanks to Mr Tidy and Sars for helping.
Brilliant - those wheels look great.
