Further to a post I made on the Buy and Sell side regarding some tyre fitments, I learned something new about tyre sizes. So the M spec wheels are the same as a standard spec Z4. Assuming they are 18" diameter with the usual PCD and bore. 8J and 8 & 1/2J for the front and rear respectively. (Lets ignore the 224's for now which have the 9J rear and for that matter the difference in wheel offsets).
M spec for tyres run on a higher profile. So a usual 18" set up is as follows:
225/40/18
255/35/18
The M set up:
225/45/18
255/40/18
What are the advantages and disadvantages of running either set up? Based on a scenario where a stock (non M) Zed is being used.
Thanks
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Z4M vs. Stock Z4 Tyre Set Up
- kis
- Lifer
- Posts: 4542
- Joined: Wed Jul 20, 2016 2:33 pm
- Location: Surrey / West Sussex Boarder
Z4M vs. Stock Z4 Tyre Set Up
My E85 Z4 3.0i SMG
BMW Family History (past and present):
1 Series - E87
3 Series - E46 Coupe, E46 M3, E90 (x3)
4 Series - F36, F82 M4
5 Series - E34 (x2), E39
7 Series - E32
X5 - E53, E70
X6 - E71
BMW Family History (past and present):
1 Series - E87
3 Series - E46 Coupe, E46 M3, E90 (x3)
4 Series - F36, F82 M4
5 Series - E34 (x2), E39
7 Series - E32
X5 - E53, E70
X6 - E71
-
- Lifer
- Posts: 4621
- Joined: Fri Dec 31, 2010 9:38 pm
Z4M vs. Stock Z4 Tyre Set Up
comfort of bigger sidewalls is the main advantage. i know Mr Wilks likes his comfy tyre sizes
18 Z4s owned to date.
Current: 2.5i Titan silver
Daily driver: 480bhp M140i Shadow edition.
Current: 2.5i Titan silver
Daily driver: 480bhp M140i Shadow edition.
- kis
- Lifer
- Posts: 4542
- Joined: Wed Jul 20, 2016 2:33 pm
- Location: Surrey / West Sussex Boarder
Z4M vs. Stock Z4 Tyre Set Up
Thats what I was thinking!
My E85 Z4 3.0i SMG
BMW Family History (past and present):
1 Series - E87
3 Series - E46 Coupe, E46 M3, E90 (x3)
4 Series - F36, F82 M4
5 Series - E34 (x2), E39
7 Series - E32
X5 - E53, E70
X6 - E71
BMW Family History (past and present):
1 Series - E87
3 Series - E46 Coupe, E46 M3, E90 (x3)
4 Series - F36, F82 M4
5 Series - E34 (x2), E39
7 Series - E32
X5 - E53, E70
X6 - E71
- mr wilks
- Legend
- Posts: 21897
- Joined: Wed Jul 04, 2012 10:02 pm
- Location: Lancashire
Z4M vs. Stock Z4 Tyre Set Up
Its my ageing bones you know other benefits are better protection for the alloys themselves on our badly maintained roads & for those who want the look of lowering without actually doing so the larger sized rubber also helps close the arch gap not that you would need that now Jjamie_z4 wrote:comfort of bigger sidewalls is the main advantage. i know Mr Wilks likes his comfy tyre sizes
3 ZMRs
3 E89s
5 Si coupes
5 Si roadsters
997 C4
TTRS
F82 M4
MK7 Golf Gti
current Bmw 6 Gran Turismo
3 E89s
5 Si coupes
5 Si roadsters
997 C4
TTRS
F82 M4
MK7 Golf Gti
current Bmw 6 Gran Turismo
- kis
- Lifer
- Posts: 4542
- Joined: Wed Jul 20, 2016 2:33 pm
- Location: Surrey / West Sussex Boarder
Z4M vs. Stock Z4 Tyre Set Up
Good points to note, thanks! I had a quick look at prices as well, unfortunately they're going up in price instead of down
But I think having the large profile would probably help, with roads being in the condition they are, and also for the well-being of the alloy itself! Just an added bonus to fill the arch gap a little bit
But I think having the large profile would probably help, with roads being in the condition they are, and also for the well-being of the alloy itself! Just an added bonus to fill the arch gap a little bit
My E85 Z4 3.0i SMG
BMW Family History (past and present):
1 Series - E87
3 Series - E46 Coupe, E46 M3, E90 (x3)
4 Series - F36, F82 M4
5 Series - E34 (x2), E39
7 Series - E32
X5 - E53, E70
X6 - E71
BMW Family History (past and present):
1 Series - E87
3 Series - E46 Coupe, E46 M3, E90 (x3)
4 Series - F36, F82 M4
5 Series - E34 (x2), E39
7 Series - E32
X5 - E53, E70
X6 - E71
-
- Senior Member
- Posts: 1115
- Joined: Tue Jul 08, 2014 10:14 pm
- Location: Staffordshire Moorlands
Z4M vs. Stock Z4 Tyre Set Up
I run 224s on my 3.0 with M size tyres and find they look good and the ride is much improved.
Sterling Grey 3.0i E85 Black Heated Leather M sports seats , 224's ,Sat Nav, Bluetooth, Xenons, PDC, Gaptech ,Cruise and a nice warm garage. NOW GONE
Silver 3.0i Z4 NOW GONE
Silver 3.0i Z4 NOW GONE