LE’s Winter Wheels
- Thread starter sars
- Start date
Devon
Did a most boring thing on the New Year’s Day. I put my G31’s 19inch wheel on the Z4 as the G31 is currently running on the winter wheels. Style-wise, I don’t know what to say tbh. Maybe less aggressive than the non black m40i wheel?
Tyre-wise, it’s the 4th gen p zero run flat tyre. Rear is in the same size as original but the front is 245/40R19. I have to say it’s more comfortable and quieter than the PSS, which came with the car, even if they are run flat tyres.
Tyre-wise, it’s the 4th gen p zero run flat tyre. Rear is in the same size as original but the front is 245/40R19. I have to say it’s more comfortable and quieter than the PSS, which came with the car, even if they are run flat tyres.
That’s interesting, your G31 obviously also has a 112 PCD, has BMW moved from 120 completely? Agree the smaller width makes a difference in noise levels. I like the wheels, but not sure I like them on the zed, what’s the offset on the G31 rears, they look a little inbound
sars said:
All G-series platform cars are using 5*112 PCD. The F-Series cars are the last generation that uses 5*120 PCD.
sars said:
The rear are very inbound instead of a little inbound. Below is the spec comparison. Basically, the rim is 1inch narrower for the G31 which is the main factor to the inbound. ET is actually similar and I doubt the 2mm and 4mm difference are noticeable
G29. vs. G31
Front. 9Jx19 ET32 with 255/35R19 8Jx19 ET30 with 245/40R19
Rear. 10Jx19 ET40 with 275/35R19 9Jx19 ET44 with 275/35R19
sars said:
As above spec says, the rears are the same size. Fronts are 10mm narrower. I doubt the comfort and noise are caused by this 10mm difference in tyre width. It's more about the tyre compound and design. PSS's performance is much better than the P-Zero 4th gen LS but it's also much harder and louder than the P-Zero.
I decided to look for 265/36/19 Conti tyres. From what I read, most places selling them are not sending the tyres from UK, but somewhere from Europe, Holland or Germany.sars said:
Scottish Borders
My bad ;-) Still, 265/35/19 are not popular size.
After last year's poor performance of Vredestein Wintrac tyres, I bought a pair of Contis to match with existing pair of Contis and that setup is great. With Vredesteins on the rear, car was wandering on the lanes and rear wasn't very stable at higher speeds. Contis on all corners solved the problem. So now, I have 4 x 255/35/19. Tyre shop made a bit of drama when fitting them on the rear, thinking they are too narrow for alloys, but all was ok. Rear wheels don't look pretty with that narrow tyres, not protecting them from kerbs, but I can live with it.
I already did 2000 miles on them in last 10 days and car drives perfectly. Went on alpine passes and even saw some snow fall and -2C.
I already did 2000 miles on them in last 10 days and car drives perfectly. Went on alpine passes and even saw some snow fall and -2C.
So the Z4 M40i standard wheel, 800M are 9 x 19 front and 10 x 19 rear, staggered generally refers to one axle having different sized wheels than the other. For winters the BMW recommended set up the Z4 would be 9 x 19 all round with 255/45 r18 (M40i) so was wondering what yours are.Schaef said: