Rough riding - Jeep Wrangler Forum
Jeep Wrangler Forum

Go Back   Jeep Wrangler Forum > General Jeep Discussions > Tires & Wheels

Join Wrangler Forum Today


Reply
 
Thread Tools

Please support our sponsors and let them know you heard about them on WranglerForum.com
Old 02-12-2012, 12:01 AM   #1
Jeeper
 
RoxstarD's Avatar
 
Join Date: May 2011
Location: Smokey MTNS
Posts: 499
Rough riding

Okay, just had the 33x12.50 rocky mountains installed for 3 days and love the look,BUT the ride is killing me. I am in disbelief how rough a ride it is. I know changing to a wider more aggressive than stock combo will make the ride a little more rough but this is sniffing close to unbearable. What can this be caused by? I have already aired down from 35psi to 29psi and that helped somewhat, but not much. So what are the options on factors that are causing this? Thanks for all the insightful responses I know are coming.

__________________
When you Roll with the Roxstar.....You ROLL with the Roxstar!!!
RoxstarD is offline   Quote Quick Reply
Old 02-12-2012, 07:20 AM   #2
Jeeper
 
4fit's Avatar
 
Join Date: Dec 2010
Location: Graham, NC
Posts: 2,304
That sucks. Hate reading this since I went with Rocky Mountains as well, only in 285/75/16. They will ne delivered Wednesday. I know you have already lowered the pressure, but I would recommend a chalk test to get it dialed in just right.

__________________
-Jeff-
'11 JKU Sport - TF Leveling Kit - 16" Strike 5s on 33s
4fit is offline   Quote Quick Reply
Old 02-12-2012, 09:11 AM   #3
Jeeper
 
RoxstarD's Avatar
 
Join Date: May 2011
Location: Smokey MTNS
Posts: 499
Quote:
Originally Posted by 4fit
That sucks. Hate reading this since I went with Rocky Mountains as well, only in 285/75/16. They will ne delivered Wednesday. I know you have already lowered the pressure, but I would recommend a chalk test to get it dialed in just right.
Well I've heard nothing but positives from these tires so it could be several factors, I just dont know what they might be?
__________________
When you Roll with the Roxstar.....You ROLL with the Roxstar!!!
RoxstarD is offline   Quote Quick Reply
Old 02-12-2012, 09:15 AM   #4
Jeeper
 
InfernoGirl's Avatar
 
Join Date: May 2009
Location: Newburgh IN
Posts: 11,419
Need more details on the tires and wheel size to help. What load range are the tires? What size wheels? 35psi is high for a 33" tire. 29 is still a bit high depending on the wheel width. Be cautious of not going too low with the chalk test, contact patch needs to be adjusted for the width of the wheel, a narrower wheel will need less contact to keep enough air in the tire. If you have a tire with a high load range it's just gonna be a rougher ride that one with a lower range. Stiffer sidewalls make a difference....
__________________

Dirty Mudder column covers|

'01 Wrangler Sport, Sienna Pearl Mine
'07 Rubicon 2D, Flame Red His
'11 Wrangler Sport 4D, Black Ours...

Quote:
Originally Posted by Kate View Post
Not every girl, is a Jeep girl. We're a special breed.
InfernoGirl is offline   Quote Quick Reply
Old 02-12-2012, 11:03 AM   #5
Jeeper
 
RoxstarD's Avatar
 
Join Date: May 2011
Location: Smokey MTNS
Posts: 499
Falken Rocky Mountains ATS 33x12.50x15 on MB TKO 15x8 with 4.5 bs. Load range C on the tires 3 ply sidewall. I understand and expected a little rougher of a ride but I'm 6.3 245 and I can man handle the hardtop by myself and I can barely keep it in the lane, it is rough!!
__________________
When you Roll with the Roxstar.....You ROLL with the Roxstar!!!
RoxstarD is offline   Quote Quick Reply
Old 02-13-2012, 09:19 AM   #6
Jeeper
 
RoxstarD's Avatar
 
Join Date: May 2011
Location: Smokey MTNS
Posts: 499
Well I aired down to 25 pounds per tire and it helped a lot but still too bumpy. Has to be something wrong. Gonna go in to DT today to see what they say.
__________________
When you Roll with the Roxstar.....You ROLL with the Roxstar!!!
RoxstarD is offline   Quote Quick Reply
Old 02-13-2012, 09:49 AM   #7
Jeeper
 
Crazyflyingplastics's Avatar
 
Join Date: Jan 2012
Location: Austin
Posts: 531
Images: 2
Quote:
Originally Posted by RoxstarD View Post
Well I aired down to 25 pounds per tire and it helped a lot but still too bumpy. Has to be something wrong. Gonna go in to DT today to see what they say.
I have the same tires in 31's and have nothing but good things to say about them. In my opinion, they are a pretty aggressive tire, so that may be contributing to the rough ride. I've had pro comp AT's in the past, and they felt like touring tires on the road and they weren't nearly as aggressive as the Rocky Mountains either.

I've had to air my down too b/c Discount Tire put them at 33 psi.
Crazyflyingplastics is offline   Quote Quick Reply
Old 02-13-2012, 10:27 AM   #8
Jeeper
 
RoxstarD's Avatar
 
Join Date: May 2011
Location: Smokey MTNS
Posts: 499
Quote:
Originally Posted by Crazyflyingplastics

I have the same tires in 31's and have nothing but good things to say about them. In my opinion, they are a pretty aggressive tire, so that may be contributing to the rough ride. I've had pro comp AT's in the past, and they felt like touring tires on the road and they weren't nearly as aggressive as the Rocky Mountains either.

I've had to air my down too b/c Discount Tire put them at 33 psi.
Again, I totally understand the theory of rougher tires causing a little rougher ride, but I can barely keep the back end of the jeep in the road doing 40 down the highwy. I have to think that's a little too aggressive. I'll follow up with a solution
__________________
When you Roll with the Roxstar.....You ROLL with the Roxstar!!!
RoxstarD is offline   Quote Quick Reply
Old 02-13-2012, 10:35 AM   #9
Jeeper
 
4fit's Avatar
 
Join Date: Dec 2010
Location: Graham, NC
Posts: 2,304
Quote:
Originally Posted by RoxstarD View Post
Well I aired down to 25 pounds per tire and it helped a lot but still too bumpy. Has to be something wrong. Gonna go in to DT today to see what they say.
Did you do a chalk test? 25 psi sounds pretty darn low for the street. Now you may be running on just the outer edges of the tread.

For what its worth, I did quite a bit of research before I decided to go with the Falkens, and this is the first I have read of this situation. Granted, most of the folks I saw running this tire weren't running the 33x12.5x15. They were generally running 285/75/16s or larger. But that just adds more of a concern to the mix since the 33x12.5x15 version has a load range of C, meaning it should actually yield a softer ride than the others. Very odd. Really has me concerned for my D range 285/75/16s that I am putting on Wednesday.
__________________
-Jeff-
'11 JKU Sport - TF Leveling Kit - 16" Strike 5s on 33s
4fit is offline   Quote Quick Reply
Old 02-13-2012, 11:47 AM   #10
Jeeper
 
RoxstarD's Avatar
 
Join Date: May 2011
Location: Smokey MTNS
Posts: 499
Quote:
Originally Posted by 4fit
Did you do a chalk test? 25 psi sounds pretty darn low for the street. Now you may be running on just the outer edges of the tread.

For what its worth, I did quite a bit of research before I decided to go with the Falkens, and this is the first I have read of this situation. Granted, most of the folks I saw running this tire weren't running the 33x12.5x15. They were generally running 285/75/16s or larger. But that just adds more of a concern to the mix since the 33x12.5x15 version has a load range of C, meaning it should actually yield a softer ride than the others. Very odd. Really has me concerned for my D range 285/75/16s that I am putting on Wednesday.
4fit, have no fear. If such as job exist as a "lemonfinder" I could be the CEO. I have the "best luck" with finding vehicles and other things that have rave reviews and zero negative comments and out of the million or so produced I can find the one that is defective. I once destroyed a yamaha grizzly with normal trail riding within 200 miles, those things are indestructible. I'm sure you will install your tires and they will be perfect, I just think I have a bad one(hopefully)
__________________
When you Roll with the Roxstar.....You ROLL with the Roxstar!!!
RoxstarD is offline   Quote Quick Reply
Old 02-13-2012, 12:48 PM   #11
Jeeper
 
4fit's Avatar
 
Join Date: Dec 2010
Location: Graham, NC
Posts: 2,304
Quote:
Originally Posted by RoxstarD View Post
4fit, have no fear. If such as job exist as a "lemonfinder" I could be the CEO. I have the "best luck" with finding vehicles and other things that have rave reviews and zero negative comments and out of the million or so produced I can find the one that is defective. I once destroyed a yamaha grizzly with normal trail riding within 200 miles, those things are indestructible. I'm sure you will install your tires and they will be perfect, I just think I have a bad one(hopefully)
I sure hope it is as simple as a bad tire, for your sake. Definitely let us know what DT has to say when they get a look at it. And good luck!
__________________
-Jeff-
'11 JKU Sport - TF Leveling Kit - 16" Strike 5s on 33s
4fit is offline   Quote Quick Reply
Old 02-13-2012, 02:20 PM   #12
Jeeper
 
RoxstarD's Avatar
 
Join Date: May 2011
Location: Smokey MTNS
Posts: 499
Well when I walked through the door the asst manager gave me a questioning look and I shook my head and just said its bad and he made a gesture to suggest poor handling and I said yes. He said he'd fix it and let me know, so I'll circle back in a little while hopefully with a solution.
__________________
When you Roll with the Roxstar.....You ROLL with the Roxstar!!!
RoxstarD is offline   Quote Quick Reply
Old 02-13-2012, 02:20 PM   #13
Jeeper
 
Gouch_07_X's Avatar
 
Join Date: May 2011
Location: Slave Lake AB
Posts: 364
Sometimes beads don't seat completely when tires are put together. Try airing them up to about 60psi and they air them down to about 15, then put them back to your regular pressure. Not being seated can effect your balance to, if the first balance them without the seated, after a bit of driving the could fully seat and throw out your balance.
Gouch_07_X is offline   Quote Quick Reply
Old 02-13-2012, 05:23 PM   #14
Jeeper
 
RoxstarD's Avatar
 
Join Date: May 2011
Location: Smokey MTNS
Posts: 499
Quote:
Originally Posted by Gouch_07_X
Sometimes beads don't seat completely when tires are put together. Try airing them up to about 60psi and they air them down to about 15, then put them back to your regular pressure. Not being seated can effect your balance to, if the first balance them without the seated, after a bit of driving the could fully seat and throw out your balance.
SUCCESS!! You hit that right on the head! Just got back from a drive with the tires. DT explained to me that each tire was .5 to 1 ounce out of balance and as the mgr put it, that can rattle fillings out of your teeth. Even at 35 psi right now the ride is tremendously better than prior. I will air down to a more comfortable ride psi but this helped tremendously
__________________
When you Roll with the Roxstar.....You ROLL with the Roxstar!!!
RoxstarD is offline   Quote Quick Reply
Old 02-13-2012, 07:15 PM   #15
Jeeper
 
4fit's Avatar
 
Join Date: Dec 2010
Location: Graham, NC
Posts: 2,304
Quote:
Originally Posted by RoxstarD

SUCCESS!! You hit that right on the head! Just got back from a drive with the tires. DT explained to me that each tire was .5 to 1 ounce out of balance and as the mgr put it, that can rattle fillings out of your teeth. Even at 35 psi right now the ride is tremendously better than prior. I will air down to a more comfortable ride psi but this helped tremendously
Great news. Glad you got it handled!
__________________
-Jeff-
'11 JKU Sport - TF Leveling Kit - 16" Strike 5s on 33s
4fit is offline   Quote Quick Reply
Old 02-13-2012, 07:23 PM   #16
Jeeper
 
Join Date: Jan 2012
Location: Ellabell, GA
Posts: 503
glad that all worked out, since i'm about to order a set of 33's
__________________
BUAIDH NO BAS!
JEEP WAVE
1CrzyCelt is offline   Quote Quick Reply
Old 02-13-2012, 07:54 PM   #17
Jeeper
 
Gouch_07_X's Avatar
 
Join Date: May 2011
Location: Slave Lake AB
Posts: 364
My tire bustin knowledge has come in handy! Haha glad roses ya got it figured out!

Gouch_07_X is offline   Quote Quick Reply
Reply

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Jeep Wrangler Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
If you do not want to register, fill this field only and the name will be used as user name for your post.
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Thread Tools

Posting Rules
You may post new threads
You may 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
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Rough Riding 98 bad lift? 3025826 TJ General Discussion Forum 2 11-29-2011 01:03 PM
2.5 rough idle and other issues roomservice TJ General Discussion Forum 2 05-11-2011 11:26 PM
Recently developed rough idle and stall '87 YJ w/i6 Hardwater Kiter YJ Tech Forum 0 08-24-2010 08:53 PM
Strange Rough Idle djl7780 TJ Tech Forum 4 04-15-2010 07:08 PM
Runing rough, idle rough, cylinder #4 misfire spdrcrpete TJ General Discussion Forum 13 06-02-2008 01:32 PM



» Featured Product

All times are GMT -5. The time now is 02:52 AM.



Jeep®, Wrangler, Liberty, Wagoneer, Cherokee, and Grand Cherokee are copyrighted and trademarked to Chrysler Motors LLC.
Wranglerforum.com is not in any way associated with the Chrysler Motors LLC