Tires Run flat vs non RF?

SCBMW02 · 12-15-2016, 04:00 PM

Sorry if discussed. Getting close to needing new tires. I switched out run flats on my last Z4 and was wanting to do the same with X5. Have others done so? Does it make a difference in ride? Any tire recommendation? I have the 2014 35i with 20 inch wheels. Thanks

I just put the M Mobility kit in the Z4

P1 · 12-15-2016, 04:26 PM

I just went from 20" wheels with RFTs to 21" wheels with non-RFTs. All I did was buy the spare tire just to be on the safe side.

Mexecutioner · 12-15-2016, 06:00 PM

I just changed to 21" wheels with non-RFTs and got the skinny spare for piece of mind. Since finding the MPSS in 21" can be a hassle (especially the rears) I got a full size 21" spare as well, the front one, so I can use it in the front or back in case of a supply shortage. Maybe to anal, but got a good deal on it, so why not?

P1 · 12-15-2016, 09:26 PM

Quote:

Originally Posted by Mexecutioner

I just changed to 21" wheels with non-RFTs and got the skinny spare for piece of mind. Since finding the MPSS in 21" can be a hassle (especially the rears) I got a full size 21" spare as well, the front one, so I can use it in the front or back in case of a supply shortage. Maybe to anal, but got a good deal on it, so why not?

I did the same. Have a spare rear, just in case...

alphaod · 12-15-2016, 10:02 PM

Since you're sorry for asking, this question gets posted about once a week...

Yes a lot of people have switched to non-RF tires and the consensus is make sure you have the spare if you choose to do so.

Kzang · 12-16-2016, 12:15 PM

And generally speaking the ride is softer and more compliant.

P1 · 12-16-2016, 02:34 PM

Quote:

Originally Posted by Kzang

And generally speaking the ride is softer and more compliant.

I think the P Zeros are an exception to this. I went from P Zero RFT to Michelin Super Sports (20" to 21"). The P Zeros were very comfortable, and the Michelins are equally as comfortable but the control I have over the vehicle is night and day. The MPSS by far wins in that department. There is a lot less roll.

Mexecutioner · 12-19-2016, 11:00 AM

No better spare than he full size spare

alphaod · 12-19-2016, 01:19 PM

But then you have no trunk space.

stewy604 · 12-19-2016, 01:21 PM

I swapped from the RFT P-Zeros (which barely lasted a year) to Conti DWS06 for my summers. Much better ride, and quieter. Wear seems excellent so far. I run RFT Pirelli Snow & Ice for winter skins.

Mexecutioner · 12-19-2016, 04:49 PM

Quote:

Originally Posted by alphaod

But then you have no trunk space.

I have the skinny one in the trunk, and the full size at home, in the garage, so I can swap it in case the MPSS tires are sold out.

ixlr8 · 12-20-2016, 07:52 AM

When I bought my X5 I was planning on dumping the RFT's so I ordered it with the spare tire option. I replaced the OEM Pirelli Scorpion Verde RFT's with Michelin Premier LTX. The ride is smoother, quieter and steering feels less 'twitchy', which I prefer. I think I may have also seen a slight improvement in mpg's with the LTX's. The only drawback to the LTX's, since they are quieter and smoother I find myself driving faster, often 20+ over speed limit.

SCBMW02 · 12-23-2016, 09:08 AM

Thanks. I ordered the Conti Contact DWS.

stewy604 · 12-23-2016, 09:45 AM

Quote:

Originally Posted by SCBMW02

Thanks. I ordered the Conti Contact DWS.

Good choice. You wont be disappointed.

12-15-2016, 04:00 PM	#1
SCBMW02 Second Lieutenant 124 Rep 237 Posts Drives: 2019 X5 40i and 2022 Z4 M40i Join Date: Feb 2008 Location: Florence,South Carolina iTrader: (0) Garage List 2022 BMW Z4 M40i [0.00] 2019 BMW X5 40i [0.00]	Tires Run flat vs non RF? Sorry if discussed. Getting close to needing new tires. I switched out run flats on my last Z4 and was wanting to do the same with X5. Have others done so? Does it make a difference in ride? Any tire recommendation? I have the 2014 35i with 20 inch wheels. Thanks I just put the M Mobility kit in the Z4
	Appreciate 0 Tweet Quote

12-15-2016, 04:26 PM	#2
P1 Lieutenant General 11572 Rep 11,136 Posts Drives: 2004 3/4 ton Duramax Join Date: Aug 2007 Location: United States iTrader: (1)	I just went from 20" wheels with RFTs to 21" wheels with non-RFTs. All I did was buy the spare tire just to be on the safe side.
	Appreciate 0 Quote

12-15-2016, 06:00 PM	#3
Mexecutioner Second Lieutenant 101 Rep 254 Posts Drives: 2015 X5 xDrive35i Join Date: Nov 2015 Location: Los Angeles iTrader: (1)	I just changed to 21" wheels with non-RFTs and got the skinny spare for piece of mind. Since finding the MPSS in 21" can be a hassle (especially the rears) I got a full size 21" spare as well, the front one, so I can use it in the front or back in case of a supply shortage. Maybe to anal, but got a good deal on it, so why not?
	Appreciate 0 Quote

12-15-2016, 10:02 PM	#5
alphaod Mmmmm… 1150 Rep 2,426 Posts Drives: F15 Join Date: Oct 2011 Location: New York iTrader: (0) Garage List 2015 BMW X5 xDrive50i [10.00]	Since you're sorry for asking, this question gets posted about once a week... Yes a lot of people have switched to non-RF tires and the consensus is make sure you have the spare if you choose to do so. __________________ 2015 BMW X5 xDrive50i BMW CCA 509766
	Appreciate 0 Quote

12-16-2016, 12:15 PM	#6
Kzang Major General 3240 Rep 5,066 Posts Drives: 2015 X5 35i Msport SG Join Date: Jun 2009 Location: East Coast iTrader: (0)	And generally speaking the ride is softer and more compliant. __________________ 2015 F15 X5 35i Msport Space Grey M Performance parts MPPK, MPE
	Appreciate 0 Quote

		BMW X5 and X6 Forum (F15/F16) > BMW X5 (F15) and BMW X6 (F16) Forum > BMW X5 and X6 (F15/F16) Forum
Tires Run flat vs non RF?

12-19-2016, 11:00 AM	#8
Mexecutioner Second Lieutenant 101 Rep 254 Posts Drives: 2015 X5 xDrive35i Join Date: Nov 2015 Location: Los Angeles iTrader: (1)	No better spare than he full size spare Attached Images
	Appreciate 0 Quote

12-19-2016, 01:19 PM	#9
alphaod Mmmmm… 1150 Rep 2,426 Posts Drives: F15 Join Date: Oct 2011 Location: New York iTrader: (0) Garage List 2015 BMW X5 xDrive50i [10.00]	But then you have no trunk space. __________________ 2015 BMW X5 xDrive50i BMW CCA 509766
	Appreciate 0 Quote

12-19-2016, 01:21 PM	#10
stewy604 Lieutenant Colonel 290 Rep 1,547 Posts Drives: 2014 BMW X5 xDrive 35d M Sport Join Date: May 2014 Location: Vancouver, B.C. iTrader: (0)	I swapped from the RFT P-Zeros (which barely lasted a year) to Conti DWS06 for my summers. Much better ride, and quieter. Wear seems excellent so far. I run RFT Pirelli Snow & Ice for winter skins. __________________ 2014 BMW X5 xDrive 35d M Sport Mineral White 2011 BMW 135i M Sport Space Grey 2007 Suzuki GSX-R 750
	Appreciate 0 Quote

12-20-2016, 07:52 AM	#12
ixlr8 Private First Class 18 Rep 137 Posts Drives: 2016 X5 35i Join Date: Nov 2015 Location: Eastern Shore Virginia iTrader: (0)	When I bought my X5 I was planning on dumping the RFT's so I ordered it with the spare tire option. I replaced the OEM Pirelli Scorpion Verde RFT's with Michelin Premier LTX. The ride is smoother, quieter and steering feels less 'twitchy', which I prefer. I think I may have also seen a slight improvement in mpg's with the LTX's. The only drawback to the LTX's, since they are quieter and smoother I find myself driving faster, often 20+ over speed limit.
	Appreciate 0 Quote

12-23-2016, 09:08 AM	#13
SCBMW02 Second Lieutenant 124 Rep 237 Posts Drives: 2019 X5 40i and 2022 Z4 M40i Join Date: Feb 2008 Location: Florence,South Carolina iTrader: (0) Garage List 2022 BMW Z4 M40i [0.00] 2019 BMW X5 40i [0.00]	Thanks. I ordered the Conti Contact DWS.
	Appreciate 0 Quote