F25/F26 Tyre thread

[Pinewood]

Being a different beast to the X5/X6...

What are your tyres of choice? (Runflats, normal , manufacturer, tyre pressures)

Let's have your views, observations and comments....

[Pinewood]

I'm running a staggered setup,  which makes the car look great aesthetically, but not convinced it's the best setup for comfort.
The plan is to buy another wheelset (probably 18" non staggered) and shod with regular tyres initially.

[RodHB]

I have run flats on my F25 - mainly for peace of mind when my wife drives it on her own. We do have a space saver (emergency wheel kit) in the boot.
My winter set are normals. Gives a rougher but softer ride but hardly discernible from the run flats.
Perhaps the variable damping helps?

[Pinewood]

Did it come with a skinny spare or did you purchase it after?

[RodHB]

No I had it already from when I had an E61 and at that time was replacing run flats to normals.
It was a MSport with sports suspension and the run flats made for a very hard uncomfortable ride.
I'd replaced the rears with normals as they wore out but didn't get round to the fronts before I sold it.
I've had/got variable damper control on both my F25s, both with run flats and it's a much better ride though wether that's the cause I don't know?

[Pinewood]

I changed all 4 tyres on my E60.  It was also a 530d M Sport and the ride was sublime on normal tyres.

[Pinewood]

The variable damper control irons out the bumps which mine does occasionally .  I think that's more to do with runflats having very little "give" compared to normal tyres,  and not the M Sport suspension per say.  My bro-in-law has a C220 sports with a much firmer ride.

[Pinewood]

What tyre pressure are you guys keeping front/rear on 19' alloys.
33 psi front
34 psi rear
At present, with me being the usual occupant and max 3 occupants on weekends. No luggage to speak of.

[RodHB]

When I picked my car up they were set at 35 all round - I think they are supposed to be 32 front 35 rear?

[bluestreak56]

Standard run flats on my F26. All around 30psi at the moment and the tyre pressure sensor hasnt complained..

[Pinewood]

[quote="bluestreak56"]
Standard run flats on my F26. All around 30psi at the moment and the tyre pressure sensor hasnt complained..
[/quote]

you could pump them up to 20psi and set the TPMS - it wouldn't complain.
I would take another look at the handbook, C Pillar as that sounds a tad low, and you will wear the tyre shoulders out quickly

[bluestreak56]

[quote="Pinewood"]
[quote="bluestreak56"]
Standard run flats on my F26. All around 30psi at the moment and the tyre pressure sensor hasnt complained..
[/quote]

you could pump them up to 20psi and set the TPMS - it wouldn't complain.
I would take another look at the handbook, C Pillar as that sounds a tad low, and you will wear the tyre shoulders out quickly
[/quote]

50psi seems excessive. However I will check the recommendations

[Pinewood]

I agree 50psi is excessive.  Without knowing your model,  i would respectably suggest 34f/36r

[Pinewood]

This car is bringing out some OCD i didn't know i had.  I keep looking at the onboard tyre pressure display!  It's really hard to get fronts and rears to EXACTLY the same pressure as it's sibling

[Pinewood]

Just had the following update from event tyres after i enquired about rft and normal rubber.

The price for your runflats     245/45R19 98Y PIRELLI PZERO BMW@ £188.82 INC VAT EACH

275/40R19 101Y PIRELLI PZERO BMW X3 *@ £204.78 INC VAT EACH

And your non runflats 

 245/45R19 98Y PIRELLI PZERO@ £173.52 INC VAT EACH

275/40R19 101Y PIRELLI PZERO@ £179.44 INC VAT EACH

All prices include fitting and balancing. Anyone used them?