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X5 F15 (2014 - Current)
The all new F15 BMW X5 started production August 2013 as a 2014 model year. The new X5 arrives in sDrive35i (RWD), xDrive35i, xDrive50i and a diesel xDrive 35d.

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  #1  
Old 08-15-2013, 03:54 PM
1mikezat1 1mikezat1 is offline
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Question X5 with BF Goodrich off-road tires; anybody tried?

Hi! This question has probably been answered before, but my search did not return meaningful results.

I am thinking of a new X5 XLine AWD. I frequently drive on a dirt road to a farm my friend's dad runs. The road is nothing special - regular cars with 18" tires make it all the time. The road, however, has laser sharp rocks that tend to puncture regular tires.

Has anyone tried off-road tires on X5? Will it void the warranty? Will it change the way suspension works? Will it be more dangerous? etc etc etc.


Appreciate your input in advance.

Sincerely,

Mike
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  #2  
Old 08-18-2013, 01:30 PM
ard ard is online now
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Quote:
Originally Posted by 1mikezat1 View Post
Hi! This question has probably been answered before, but my search did not return meaningful results.
Never asked as far as I recall

Quote:
Originally Posted by 1mikezat1 View Post
Will it void the warranty?
No


Quote:
Originally Posted by 1mikezat1 View Post
Will it change the way suspension works?
No


Quote:
Originally Posted by 1mikezat1 View Post
Will it be more dangerous?
No.

I mean what are you thinking/asking??! Tires are tires- read the reviews, understand the capabilities on the highway. Buy a tire that is legal on the road and has off road capability if you must. I'd just use the regular all seasons- if you rupture those, replace them with a set with roadhazard coverage. Oh, steer and drive appropriately when driving over challenging terrain.

Quote:
Originally Posted by 1mikezat1 View Post
etc etc etc.

Unknown

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  #3  
Old 08-19-2013, 02:44 PM
1mikezat1 1mikezat1 is offline
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Thank you for getting back to me. It's my understanding that
replacing run flat tires with conventional tires "... deviates away from the original design, safety and suspension calibration technology that the run flats were originally designed for."

Will the ride with off-road tires require adjustments to the "suspension calibration technology" ?

The quotes are from BMW engineer of some sort. Sorry, I can no longer find the post where he said so.

Also, what about the barrage of warnings that are currently associated with running non-RFTs on RFT-equipped cars? Is there a way to tell the computer ?

I am curious if anybody tried offroad tires himself? What kind? Please post here.

Many thanks in advance

Last edited by 1mikezat1; 08-19-2013 at 02:48 PM.
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  #4  
Old 10-12-2015, 06:00 PM
KES328 KES328 is offline
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I did a 3 hour Land Rover driving school class(so not claiming to be an expert here) where stock LR were driven off road with stock tires at normal pressure. Truly amazing what Land Rovers can do off road. These were soccer mom stock LR. No special off road tires or mods. The key was going slow (and real slow) and picking a line. The goal was to safely drive the course. Not speed. The instructor showed how you go to the low side of a banked road as the car would slide that way anyway so why not start there and avoid "slicing a tire".

I think you X5 will do fine if you take it slow.
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  #5  
Old 10-12-2015, 07:11 PM
John Galt John Galt is offline
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I ran BFG All-Terrains on a 2008 Xterra I owned and they were amazing tires! (A friend of mine...) routinely drove it on the highway at 90MPH and it rode extremely well, was very stable, etc. Not saying that my friend would condone this behavior...

Those tires wore like iron. I had over 75,000 miles on them and they still had plenty of life left in them. They were so damn-aggressive that when new, I sprained my wrist trying to make a quick lane change from a stop while at a light. The tires literally could overcome the power steering. In the snow they were also truly superb, however unless you get them siped they are not the greatest on ice unless nearly-new with the sharp edges of the tread still present.

Here's your dilemma: I don't believe you'll find a set of BFG's that will be in the proper size for the X5, however I did not Google it. At 18" rim diameter, I'm guessing the BFG's will have a very tall profile like 275 or greater (again, just my wild guess here, as I did not search them out). Figure if you're motivated enough, you could have at it. Also plan on having a can of fix-a-flat if you're not running the space-saver spare and keep your existing tires if you're leasing. When you turn the vehicle back in on a lease, it must wear the correct factory-spec tires (per the direction I received during turn-in recently of my wife's 3-series).

-John
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  #6  
Old 10-12-2015, 09:12 PM
John Galt John Galt is offline
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edit to add: I'll be damned! Just may take a hard look at these as my next winter tire over the Blizzaks I'm currently running... They sure would look out of place though!

http://www.tirerack.com/tires/tires....rtnum=555R8KO2
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Last edited by John Galt; 10-13-2015 at 05:10 AM.
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  #7  
Old 10-13-2015, 04:34 AM
eeyore8 eeyore8 is offline
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Used those BFG All Terrians on all the 4X4's I owned when living in CA in the 90s. Great off-road tire and good on-road as well.
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  #8  
Old 10-13-2015, 11:53 AM
Mikeyboy1069 Mikeyboy1069 is offline
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Quote:
Originally Posted by John Galt View Post
edit to add: I'll be damned! Just may take a hard look at these as my next winter tire over the Blizzaks I'm currently running... They sure would look out of place though!

http://www.tirerack.com/tires/tires....rtnum=555R8KO2

I used the standard KOs, 10 ply tire can hold 80 psi, had them on two vehicles, wonderful product (Michelin) but I don't think you would be happy with the ride and $400 ra expense. I have not tried these KO2s, but I bet they're great.
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  #9  
Old 10-13-2015, 06:41 PM
John Galt John Galt is offline
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Originally Posted by Mikeyboy1069 View Post
I used the standard KOs, 10 ply tire can hold 80 psi, had them on two vehicles, wonderful product (Michelin) but I don't think you would be happy with the ride and $400 ra expense. I have not tried these KO2s, but I bet they're great.
Agreed. Stated in jest.
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