XBimmers.com | BMW X6 Forum X5 Forum
 
TireRack





Go Back   XBimmers.com | BMW X6 Forum X5 Forum > BMW X5 Forums > General BMW X5 (E70) and X5M Forum (2006-2013)

Post Reply
 
Thread Tools Search this Thread
      03-15-2015, 08:18 AM   #1
E55 Bulldog
Private
E55 Bulldog's Avatar
25
Rep
71
Posts

Drives: 2014 M6 GC
Join Date: Jun 2009
Location: Wilmington, NC

iTrader: (0)

Tire Questions....

hey everyone. I have searched and read a good deal on tires but still come up with a few questions. Sorry if this is a ....

Im looking for a set of new tires for my 2011 X5M and it looks like my 2 best options and price are on Nitto Motivo and Conti DWS. I live in coastal NC and don't have to worry about snow so the Motivo's might be a better go for me and they have a longer lasting tread rating.

I had the alignment pulled back into a more neutral setting because I was only getting 15-20k out of the OE tires (inner band on rears and outer band on fronts were SHOT).

Questions are:

Is there any benefit in going with a wider cross section on our tires? Would this help carry the ware better, especially on the fronts. From sharp turning it really eats up the outer band on these tires.

Im am a little worried about going from a RFT to a non-RFT. For safety, should I carry a plug kit, fix a flat, or a small compressor?

Any other thoughts or pointer would be great. thanks.
__________________
1997 HMC4 Hummer H1
2003 KSC2 Hummer H1
1969 Jaguar XKE
2014 M6 GC
Appreciate 0
      03-15-2015, 09:50 AM   #2
Rborrow14
Banned
23
Rep
181
Posts

Drives: 2013 M5 & M6,X5 4.8is,E39,535
Join Date: Dec 2014
Location: New york

iTrader: (0)

RFt are good if you are running Oe Wheels as they will be able to sustain pressure and force to the rims,certain rims may not be able to withstand the impact of RFT due to they will be very stiff and can potentially crack the inner lip of the rims. transitioning from RFT-Non Rft it has its benefit, smoother feel,more comfortable. Switching to any Non RFt is always a good feeling in my view even the harsh road condition you only feel a little of it. a good patch/plug kit will be a must if you're running non RFT and portable Pump for tires will be good for you.
Appreciate 0
      03-15-2015, 10:57 AM   #3
PAX5
Captain
70
Rep
600
Posts

Drives: 2012 X5 50i
Join Date: Oct 2011
Location: Pennsylvania

iTrader: (0)

Quote:
Originally Posted by E55 Bulldog View Post
...
Im looking for a set of new tires for my 2011 X5M and it looks like my 2 best options and price are on Nitto Motivo and Conti DWS. I live in coastal NC and don't have to worry about snow so the Motivo's might be a better go for me and they have a longer lasting tread rating.

I had the alignment pulled back into a more neutral setting because I was only getting 15-20k out of the OE tires (inner band on rears and outer band on fronts were SHOT).

Questions are:

Is there any benefit in going with a wider cross section on our tires? Would this help carry the ware better, especially on the fronts. From sharp turning it really eats up the outer band on these tires.

Im am a little worried about going from a RFT to a non-RFT. For safety, should I carry a plug kit, fix a flat, or a small compressor?

Any other thoughts or pointer would be great. thanks.
First mistake was "pulling the alignment back into a more neutral setting" ... if by that you mean you had the wheels aligned to the middle of the factory spec as far as toe-in is concerned, you will now most certainly see INCREASED shoulder wear.

Rule #1 with for decreasing shoulder wear on FRONT or REAR: set the toe-in close to zero, but not zero! About 0.02 is ideal. This requires a skilled technician, because setting the suspension to that value will require time/patience because of drift while adjusting ...

Rule #2: set the camber on the REAR wheels to the middle of the spec: symmetrically the same value

Voila! Problem solved. Michelins or Conti's will wear the same, all other things being equal ...
__________________
PAX5
BMWCCA 20645
Appreciate 0
      03-16-2015, 07:06 AM   #4
E55 Bulldog
Private
E55 Bulldog's Avatar
25
Rep
71
Posts

Drives: 2014 M6 GC
Join Date: Jun 2009
Location: Wilmington, NC

iTrader: (0)

No, you are right. I use the term "neutral" lightly. I had them set it up to get the shoulder away as the main point of contact. This was a camber adjustment more than anything.


Any thoughts on tread width? Stick to stock or go wider?
__________________
1997 HMC4 Hummer H1
2003 KSC2 Hummer H1
1969 Jaguar XKE
2014 M6 GC
Appreciate 0
      03-16-2015, 10:15 AM   #5
PabloK
Lieutenant Colonel
PabloK's Avatar
United_States
595
Rep
1,805
Posts

Drives: F30
Join Date: May 2013
Location: Orono

iTrader: (1)

Quote:
Originally Posted by E55 Bulldog View Post
No, you are right. I use the term "neutral" lightly. I had them set it up to get the shoulder away as the main point of contact. This was a camber adjustment more than anything.


Any thoughts on tread width? Stick to stock or go wider?
I would stay stock.
__________________
2014 F30 335i / 2014 F31 328d / 2014 F22 m235i
2019 G05 5.0 / 2012 E70 X5 50i / 2007 X5 3.0is
2011 e93 M3 / 2009 E60 M5 / 2004 E46 M3
2017 Alpina B6
22 Ram Trx / 22 M5 CS
Appreciate 0
      03-16-2015, 12:12 PM   #6
mitch808
Captain
107
Rep
994
Posts

Drives: 2012 X5 35i
Join Date: Mar 2014
Location: Seattle

iTrader: (0)

There is a slight difference in wear ratings between the Nitto Motivo's and the Continental DWS's. One claims 50k the other 60k in wear rating. But since there is no industry standardized test for this wear rating, the manufacturer makes up this number based on their own internal testing. So expect them to wear after 30-40k depending on driving habits. (I never believe manufacturer specs) ergo, buy with your wallet and not that spec in mind.

While the ride is "softer." I do not believe it's detrimental to handling. It's actually better in a lot of ways. Stiffer ≠ better handling! People that use the argument that RFT's handle better because of the sidewall are mistaken. Add 3-4psi to a non-RFT, done, but you do this for track driving and not everyday driving IMO, to prevent sidewall rollover during high G corners.

That said, tires are super subjective. With a non-RFT, you gain a bit more comfort in a less jarring ride. You shave off a lot of weight off each axle, which means better MPG and a faster reacting suspension.
You also do lose the piece of mind during a flat. But there are remedies to that. road-side assistance, fix a flat, spare tire kit, etc

Lastly, Toe is what wears tires. Not camber. The rear camber is adjustable, the front not alone without about $1k in parts and labor, and 0.5 (+/-) is the maximum adjustment. Personally about -1.0 to -1.5 camber in the rear, and spend the bucks on the -0.5 deg front camber kit, zero out the toe to as close to 0.00 as possible and you'd have the best alignment possible for an aggressively driven vehicle.
Appreciate 0
      03-16-2015, 07:11 PM   #7
PAX5
Captain
70
Rep
600
Posts

Drives: 2012 X5 50i
Join Date: Oct 2011
Location: Pennsylvania

iTrader: (0)

Quote:
Originally Posted by mitch808 View Post
...
Lastly, Toe is what wears tires. Not camber. The rear camber is adjustable, the front not alone without about $1k in parts and labor, and 0.5 (+/-) is the maximum adjustment. Personally about -1.0 to -1.5 camber in the rear, and spend the bucks on the -0.5 deg front camber kit, zero out the toe to as close to 0.00 as possible and you'd have the best alignment possible for an aggressively driven vehicle.

+++1
__________________
PAX5
BMWCCA 20645
Appreciate 0
Post Reply

Bookmarks

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off



All times are GMT -5. The time now is 02:42 PM.




xbimmers
Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
1Addicts.com, BIMMERPOST.com, E90Post.com, F30Post.com, M3Post.com, ZPost.com, 5Post.com, 6Post.com, 7Post.com, XBimmers.com logo and trademark are properties of BIMMERPOST