F10 Winter Tyres

[Pauloamore]

Chaps,

Anyone got a plan? I'm running 20" and there are no BMW approved tyres for that alloy size.
- though tyredevotion did find 2 rears in Slovakia and 2 fronts in Germany.

Anyway, sounds like I ought to buy a set of 19" rims for £3k inc tyres.

Any thoughts greatfully appreciated.

Regards
Paul

[mondie]

Hi Paul,

Living in the NE of Scotland winters are not an option. For that reason we stuck with the standard 19" rims which seem to offer a reasonable choice of winter tyres. I was disappointed to find the 18" BMW winter tyre/rims we own for the e60 dont fit the F10. I would not mind a second set of 19" rims but dont think I can justify the additional cost.

Have you found any good aftermarket wheel choices or are you looking at OEM?

Cheers
Simon

[Wills2]

I had pirelli Sottozeros on 19" non run flats so not BMW rated but the BMW dealer supplied and fitted them, they don't have to be BMW star marked.

Edited by Wills2 on Thursday 26th September 21:18

[Cheib]

Pauloamore said:

Chaps,

Anyone got a plan? I'm running 20" and there are no BMW approved tyres for that alloy size.
- though tyredevotion did find 2 rears in Slovakia and 2 fronts in Germany.

Anyway, sounds like I ought to buy a set of 19" rims for £3k inc tyres.

Any thoughts greatfully appreciated.

Regards
Paul

I wouldn't worry about BMW approved....as long as they are the right size, tyre load etc. They do sell 20" winter tyres for the X5 though clearly they are a very different size. It makes no sense to have 20" anyway.....in Europe you never see cars on big wheel sizes with winter tyres on.

[scz4]

mondie said:

Hi Paul,
I was disappointed to find the 18" BMW winter tyre/rims we own for the e60 dont fit the F10.
Cheers
Simon

Simon, I'm also in the NE of Scotland but with a F11. For info, I'm using my previous OEM 18" E61 winter wheels on my F11. They fit perfectly and have a slightly more aggressive offset, 7mm or so. Not enough to cause any problems, in fact they will the arches better. 19" rims are kept for the summer.

[rassi]

scz4 said:

Simon, I'm also in the NE of Scotland but with a F11. For info, I'm using my previous OEM 18" E61 winter wheels on my F11. They fit perfectly and have a slightly more aggressive offset, 7mm or so. Not enough to cause any problems, in fact they will the arches better. 19" rims are kept for the summer.

18" will unfortunately not fit an F10 M5

[scz4]

Apologies, didn't realise this was the ///M Forum.

Although I don't see why it wouldn't work. The E61 offset results in the wheels sticking out 7mm more than my standard setup. Putting M5 wheels on my car means 8mm more. So the offset when calculated against the width must be near identical, don't just look at the offset number.

[scz4]

Just worked out the fronts.

Standard front 20" M5 rims which are 9" wide ET34. The front E60 wheels are 8" ET 20.

You would therefore have 27mm more inner clearance at they would only extend out by 1mm.

Unless it's the brake size and you can't fit 18's?? Quite possible. Or the difference in the rolling circumference... that's a different calculation. But offsets and widths don't look a problem.

[rassi]

It is the brake size: The E60 M5 had 374 mm diametre fronts, the F10 M5 has 400 mm diametre fronts, necessitating 19" wheels as minimum.

[mondie]

This thread got my hopes high for a minute that my 18" winters may fit the F10 but alas it seems not. Anybody else pondering options for winter tyres, surely with all the owners on the board there has to be more than 2 or 3 of us wanting winters.

[goldblum]

I used 20" SottoZeros on my S8. Very good tyre.

[mondie]

Does any one know if Conti winter tyres - rear 275/30/19 & front 245/35/19 would be a good fit for the standard M5 19" wheels which are:

265/40-19
295/35-19

My concern is that they may be a little too narrow but to maximise winter grip I want to go as narrow as possible safely. Dunno how it might look

Cheers
mondie

[E30M3SE]

mondie said:

Does any one know if Conti winter tyres - rear 275/30/19 & front 245/35/19 would be a good fit for the standard M5 19" wheels which are:

265/40-19
295/35-19

My concern is that they may be a little too narrow but to maximise winter grip I want to go as narrow as possible safely. Dunno how it might look

Cheers
mondie

If you're going for a narrower winter tyre you need to go up in profile, not down, in order to keep the rolling circumference about the same as factory.

To keep this as close as possible you want,

235/45 19 fronts
255/40 19 rears

although believe BMW recommend a square set up using 255/40 19.

See here,

http://www.realoem.com/bmw/showparts.do?model=FV92...


OP, here's an option for you,

http://www.realoem.com/bmw/showparts.do?model=FV92...

Edited by E30M3SE on Sunday 6th October 10:52

[mondie]

Thanks for the advice, I was thinking the profile was too small but this set was offered to me cheap so it was wishful thinking on my part. Need to buy some of these soon, this beaut weather wont last forever in NE Scotland!

[goldblum]

mondie said:

My concern is that they may be a little too narrow but to maximise winter grip I want to go as narrow as possible safely.

Why? Once you get beyond hatchback sized tyres it's grip on top of the snow you're interested in. If it's just slush any size good wet weather tyre should be fine.

Edited by goldblum on Friday 25th October 22:31

[mondie]

My comment related to the rim width and the tyres possibly being too narrow. Its a dead issue now that the profile is all wrong.

[mondie]

E30M3SE said:

If you're going for a narrower winter tyre you need to go up in profile, not down, in order to keep the rolling circumference about the same as factory.

To keep this as close as possible you want,

235/45 19 fronts
255/40 19 rears

although believe BMW recommend a square set up using 255/40 19.

See here,

http://www.realoem.com/bmw/showparts.do?model=FV92...


OP, here's an option for you,

http://www.realoem.com/bmw/showparts.do?model=FV92...

Edited by E30M3SE on Sunday 6th October 10:52

Thanks for the help, my main concern is matching tyre widths to OEM 19" Rim width. I will check out those links and see if I can find any reference to what BMW recommend for the standard alloys.

[E30M3SE]

Thoe links are to the BMW ETK (BMW's parts catalogue).

[mondie]

Does anybody know how I would be able to verify the 255/40 19" winters will suit the F10 OEM 19" alloys?

[mondie]

Just bumping this one back up since NE Scotland must only be days away from first snow Anybody know if 255/40's will do the job on OEM 19" rim?

Keen to ehare from anyone who has recently taken the plunge and what you went for

Cheers