[noka]

The trouble with the M-Mobility kit (I also had with my '03 M5) is that it expires after some time (2-4 yr?) and needs to be replaced, even if not used. Even if that were not true (e.g. some drugs can work well after expiration date), would you want to chance it when you need to depend on it? Also, although I never did get to use it, I heard it can really mess up the inside of the wheel, especially one with TPMS sensors. I also have AAA and the BMW Roadside Assistance (as you probably do as well). However... you might want to check out this thread if you have not already, w.r.t. towing/flatbedding the X3 (not related to a problem with a flat but just to be aware in case you find yourself without power/ignition):
http://x3.xbimmers.com/forums/showthread.php?t=649204

[Rodion]

Here is my humble winter set-up. Works like a charm. (sorry about big images)

A detailed view:




And general view:

[MJM]

Thanks noka, I am very familiar with what some call "Car Wash" mode of getting the transmission into neutral. (Not that any of my cars go through anything but a "Touch-free" car wash when its too cold to hand wash.)

I am also aware of the expiration dates for the mobility kits. Buy the time that happens, I will need new tires anyway, so a new can will be replaced at that time.

[Nahoa]

Originally Posted by Rodion

Here is my humble winter set-up. Works like a charm. (sorry about big images)

A detailed view:




And general view:

The studded tires are a bit of overkill with so little snow, no?

[Harplayr]

Originally Posted by walendvay

I use nokian Hakka 7 run flat. 225/60-17. I find the performance on ice packed roads to be amazing! They are on a set of dedicated Borbet wheels from my old E83.

I've got a set of Borbet wheels from my old E83. Do these fit the F25 without any modifications?

I was planning on selling them and getting a new set of wheels for the F25, but if these will work then I just saved a lot of money.