stock tires on 20" wheels...

[ellisina4]

Just ordered 2015 X5 xDrive50 for my wife with a space-saver tire.
Was planning to take off the factory run-flats (that will be mounted on 20" wheels) and replace them with Continental DWS tires (I am in Chicago so need good all-season tires).
1. Does anyone know what type of run-flats come with MY2015?
2. No one really cares for factory run-flats due to ride harshness and longevity so do you think I will be able to sell these?

Thank you

[MtgMaster]

Number 2 is definitely not accurate but Yes there is always a market for new used tires, especially run-flat. For the right price you will sell quick. Which tire is one of few things you don't know till you get the car. Either Dunlop pirelli contis.

[buckeyewalt]

Last several people that got new 50i including myself had Pirelli on them. Not saying that you will though!

[vivalaReagan]

what's the consensus on the better tire, pirelli or dunlop?

[ellisina4]

Am I correct that all RFT that come with the car are summer tires and not all season ones?

[Overtaxed]

Originally Posted by ellisina4

Just ordered 2015 X5 xDrive50 for my wife with a space-saver tire.
Was planning to take off the factory run-flats (that will be mounted on 20" wheels) and replace them with Continental DWS tires (I am in Chicago so need good all-season tires).
1. Does anyone know what type of run-flats come with MY2015?
2. No one really cares for factory run-flats due to ride harshness and longevity so do you think I will be able to sell these?

Thank you

Yes, you will certainly be able to sell them, no doubt about it. Or, if you leased, keep them on the truck until the winter and then switch to the DWS. Leave them on for the next 2 years and then swap back to stock before turn in. That'll save you 1K just from the price swing (and another 3-5K because you won't wear out the DWS tires in 10-15K miles).

[skalberti]

I've ordered several cars from my dealership and I always sell my run flats to the parts dept at the BMW dealership. They give me their cost on them which more than pays for whatever set of tires I choose to install. You can't go wrong with the DWS. I had a set on my 2012 MSport with the staggered 20's and that thing rolled around like a tank with the sleet and snow we got last winter. I have a new set I DWS sitting in my garage now waiting on our 2015 X5D.

[barcelona]

Only stock 20's are performance. No 20's in all season RFT. Fewer brand choices as well. Some owners will use 20's in the winter.

[HansRobert]

Originally Posted by barcelona

Only stock 20's are performance. No 20's in all season RFT. Fewer brand choices as well. Some owners will use 20's in the winter.

Am I correct in assuming that the issue with using 20" RFT in winter is the tread design? If it is just cold with no snow/ice or rain would they perform in a satisfactory manner?

[barcelona]

Originally Posted by HansRobert

Am I correct in assuming that the issue with using 20" RFT in winter is the tread design? If it is just cold with no snow/ice or rain would they perform in a satisfactory manner?

Not the tread design, that is where every brand is different along with chemical compounds like silica for softness. The 20's are staggered and some owners prefer that the front and rear follow the exact track markings in the snow, which is valid to some extent, when driving straight. Most prefer to downsize for winters as the smaller footprint would have more psi on the rubber that makes road contact for traction on snow.

[skalberti]

Originally Posted by HansRobert

Am I correct in assuming that the issue with using 20" RFT in winter is the tread design? If it is just cold with no snow/ice or rain would they perform in a satisfactory manner?

With the performance RFT you can run those until the temps fall to around 35-40. At that point the rubber, due to the compound that they're made of, becomes too hard and begins to lose traction even on dry roads. To run any performance tire on snow, ice, slush is absurd. Even on a 4WD vehicle all you'll do is spin. Even if you happen to get moving and get traction, you won't be able to stop.

[Armen383]

Originally Posted by vivalaReagan

what's the consensus on the better tire, pirelli or dunlop?

I'm no expert when it comes to numbers and tyres, but I currently drive the X5 on 20" Dunlops and my 6er had 20" Pirelli P-zeros fitted: and IMHO all in all - both are very good. Good grip (incl. wet conditions), low sound levels, OK wear (try riding on Toyo 888ers lol).