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Will M4 Wheels fit the E89 Z4

Posted: Wed Jun 07, 2017 3:15 am
by Valor1
I've been told the BMW M4 Wheels will fit the E89. I am looking at the Style 437 M wheels. They are supposed to be forged and weigh less than Z4 wheels while being wider. 9" front and 10" rear.

Has anyone fit 19" M4 wheels?

The 437M wheels?

Will M4 Wheels fit the E89 Z4

Posted: Wed Jun 07, 2017 9:36 am
by Tumnus
Yes they should fit just fine, chap in Germany has them fitted, the offset is the same as the 326m so they'll extend another half inch into your wheel arch, and half an inch outwards compared to the 326 wheels.
http://www.zroadster.com/forum/index.ph ... hr.109152/

Wheel specs:
Front Wheels: 9Jx19 ET29 (p/n BMW 36112284755)
Rear Wheels: 10Jx19 ET40 (p/n BMW 36112284756)

Will M4 Wheels fit the E89 Z4

Posted: Wed Jun 07, 2017 12:20 pm
by cerbera
Didnt Mr Wilks old E89 have these wheels?


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Will M4 Wheels fit the E89 Z4

Posted: Wed Jun 07, 2017 7:27 pm
by Valor1
Tumnus wrote: Wed Jun 07, 2017 9:36 am Yes they should fit just fine, chap in Germany has them fitted, the offset is the same as the 326m so they'll extend another half inch into your wheel arch, and half an inch outwards compared to the 326 wheels.
http://www.zroadster.com/forum/index.ph ... hr.109152/

Wheel specs:
Front Wheels: 9Jx19 ET29 (p/n BMW 36112284755)
Rear Wheels: 10Jx19 ET40 (p/n BMW 36112284756)
Thank you for this very useful information! With those spacings you've described seems like it would work.....and hopefully with 275 or 285 rear tires :)

Will M4 Wheels fit the E89 Z4

Posted: Wed Jun 07, 2017 7:29 pm
by Valor1
cerbera wrote: Wed Jun 07, 2017 12:20 pm Didnt Mr Wilks old E89 have these wheels?


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That looks interesting! I wonder if he had any rubbing issues and what size tires he used. Looks nice and aggressive and from whnat I have read these wheels are wider and lighter than the comparable z4 wheels.

Will M4 Wheels fit the E89 Z4

Posted: Wed Jun 07, 2017 7:39 pm
by mr wilks
Valor1 wrote: Wed Jun 07, 2017 7:29 pm
cerbera wrote: Wed Jun 07, 2017 12:20 pm Didnt Mr Wilks old E89 have these wheels?


Image
That looks interesting! I wonder if he had any rubbing issues and what size tires he used. Looks nice and aggressive and from whnat I have read these wheels are wider and lighter than the comparable z4 wheels.

I think that was Z4M-2006 35Is but wheels were the same specs as mine only different colour .
M4 style 19s from CMwheels around £500
8.5j et 38 fronts / 9.5j et 40 rears , no issues on mine with Se suspension ( 235 35 19 + 255 35 19 ) Z4M-2006 i can't speak for


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Will M4 Wheels fit the E89 Z4

Posted: Wed Jun 07, 2017 7:52 pm
by ibroker
295's on my rear end. No rubbing.

Will M4 Wheels fit the E89 Z4

Posted: Fri Jun 09, 2017 9:08 pm
by Valor1
ibroker wrote: Wed Jun 07, 2017 7:52 pm 295's on my rear end. No rubbing.
You squeezed 295?!? That's great!!!

Which tire brand and model?

Which wheels are you using? Any pics of your car?

Will M4 Wheels fit the E89 Z4

Posted: Fri Jun 09, 2017 9:21 pm
by mr wilks
Valor1 wrote: Fri Jun 09, 2017 9:08 pm
ibroker wrote: Wed Jun 07, 2017 7:52 pm 295's on my rear end. No rubbing.
You squeezed 295?!? That's great!!!

Which tire brand and model?

Which wheels are you using? Any pics of your car?
295 :o why would you want too ? I appreciate you've maxxd up the tuning to 400bhp but unless 10j /10.5 or 11j rim widths seems a bit ott :?

Will M4 Wheels fit the E89 Z4

Posted: Fri Jun 09, 2017 10:07 pm
by ibroker
There 10 inch rims on the rear

Will M4 Wheels fit the E89 Z4

Posted: Sat Jun 10, 2017 2:21 am
by Valor1
mr wilks wrote: Wed Jun 07, 2017 7:39 pm
Valor1 wrote: Wed Jun 07, 2017 7:29 pm
cerbera wrote: Wed Jun 07, 2017 12:20 pm Didnt Mr Wilks old E89 have these wheels?


Image
That looks interesting! I wonder if he had any rubbing issues and what size tires he used. Looks nice and aggressive and from whnat I have read these wheels are wider and lighter than the comparable z4 wheels.

I think that was Z4M-2006 35Is but wheels were the same specs as mine only different colour .
M4 style 19s from CMwheels around £500
8.5j et 38 fronts / 9.5j et 40 rears , no issues on mine with Se suspension ( 235 35 19 + 255 35 19 ) Z4M-2006 i can't speak for


Image
Thank you! The ones I've seen discussed on the net are 9 and 10s if I recall correctly, forged and very lightweight.

Will M4 Wheels fit the E89 Z4

Posted: Sat Jun 10, 2017 2:23 am
by Valor1
ibroker wrote: Fri Jun 09, 2017 10:07 pm There 10 inch rims on the rear
Thank you! Would love to see more pics of your car. Do you know the front and rear offsets are on your wheels? 10" rear and how wide in the front? Are you running 245 in the front? Think 255 might fit?

Will M4 Wheels fit the E89 Z4

Posted: Sat Jun 10, 2017 2:28 am
by Valor1
Tirerack has BBS wheels that are 19 x 9.5 front and 10.5 rear that weigh just 16.5 front and 17.5 rear!!!! Super expensive but OMB amazing. I heard a formula that states for every one pound of rotating mass you reduce it is like taking 4 pounds of weight off the car. So if these wheels weigh a stunning 40 pounds less than OEM that would be like taking 160 pounds off the car. That's a weight difference you can really feel and measure! BBS FI-R

Will M4 Wheels fit the E89 Z4

Posted: Sat Jun 10, 2017 9:06 am
by ibroker
They are 295/30 and 235/35.

In fairness I only put the 295 on the rear as I had a spare set in the garage. I had one put on a rim to see if they would fit and "happy days"

Had i not had the tyres I would stuck with 265/275

Will M4 Wheels fit the E89 Z4

Posted: Sat Jun 10, 2017 10:02 am
by mr wilks
Valor1 wrote: Sat Jun 10, 2017 2:28 am Tirerack has BBS wheels that are 19 x 9.5 front and 10.5 rear that weigh just 16.5 front and 17.5 rear!!!! Super expensive but OMB amazing. I heard a formula that states for every one pound of rotating mass you reduce it is like taking 4 pounds of weight off the car. So if these wheels weigh a stunning 40 pounds less than OEM that would be like taking 160 pounds off the car. That's a weight difference you can really feel and measure! BBS FI-R
I understand power to weight equation but why buy a E89 then get hung up on how heavy it is :? they are never going to be svelte or lithe with the roof weight + mech they are carrying :cry: