Why do my tires do this on the 250?
12-04-13, 06:56 AM
#1
Intermediate
Thread Starter
Why do my tires do this on the 250?
See the darker part and dirtier part on the tires? Happens on all four, outside part seems like it's the part making contact? Just seems odd that it's perfectly lined up with the outer tread. I don't know enough about tires and suspension to diagnose. Note: I have NO SUSPENSION MODS. Tires are Michelin Pilot Sports.
Suggestions on what I need to check?
Suggestions on what I need to check?
Last edited by kennyD; 12-04-13 at 07:10 AM.
12-04-13, 07:04 AM
#2
that seems weird if all your tire pressure has been good to just wear on the outside
ususally i see excessive inside wear on the IS before i see much outside wear
whens the last time you had an alignment?
ususally i see excessive inside wear on the IS before i see much outside wear
whens the last time you had an alignment?
12-04-13, 01:34 PM
#7
This is off the Michelin website for the PS2s:
Unique tread design utilizes both a semislick outer tread and a wet-styled innertread to help deliver high levels of wet and dry performance.
It is most likely the difference in the rubber compounds and how the dirt/dust sticks to the different treads.
Unique tread design utilizes both a semislick outer tread and a wet-styled innertread to help deliver high levels of wet and dry performance.
It is most likely the difference in the rubber compounds and how the dirt/dust sticks to the different treads.
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12-04-13, 01:51 PM
#8
This is off the Michelin website for the PS2s:
Unique tread design utilizes both a semislick outer tread and a wet-styled innertread to help deliver high levels of wet and dry performance.
It is most likely the difference in the rubber compounds and how the dirt/dust sticks to the different treads.
Unique tread design utilizes both a semislick outer tread and a wet-styled innertread to help deliver high levels of wet and dry performance.
It is most likely the difference in the rubber compounds and how the dirt/dust sticks to the different treads.
12-04-13, 02:39 PM
#9
Intermediate
Thread Starter
This is off the Michelin website for the PS2s:
Unique tread design utilizes both a semislick outer tread and a wet-styled innertread to help deliver high levels of wet and dry performance.
It is most likely the difference in the rubber compounds and how the dirt/dust sticks to the different treads.
Unique tread design utilizes both a semislick outer tread and a wet-styled innertread to help deliver high levels of wet and dry performance.
It is most likely the difference in the rubber compounds and how the dirt/dust sticks to the different treads.
To answer your questions, I haven't had an alignment in a while. Car drives pretty darn good, tires never wore out funny. I never felt the need to subject my car to a guy who may or may not know what he's doing (especially with the IS tire wear issue).
And tire wear is quite even from what I can see with only visual observation. I don't have any bad wear on the inside or outside. And the issue is identical on all 4 tires. So it kind of rules out major alignment issues. Unless all 4 are jacked up, then *sigh*...
Anyway, that definitely explains it. I appreciate the help.
12-04-13, 04:37 PM
#10
Lexus Test Driver
I believe what it is called is a Symmetric Tread pattern. If you can see by the groves on the inside and the outside, they go in opposite directions. Symmetric tread patters not only do they use the different compounds for dry and wet performance, but they allow you to rotate your tires freely because they can be driven in any rotation pattern. Symmetric tires DO NOT have "THIS SIDE OUT" on their side wall because they have multiple rotation patterns
Last edited by NYKnick101; 12-04-13 at 04:50 PM.
12-04-13, 04:43 PM
#11
I believe what it is called is a Symmetric Tread pattern. If you can see by the groves on the inside and the outside, they go in opposite directions. Symmetric tread patters not only do they use the different compounds for dry and wet performance, but they allow you to rotate your tires freely because they can be driven in any rotation pattern
http://www.tirerack.com/tires/tirete...jsp?techid=180
Here is an example of a Symmetric tread design, which I actually roll on right now :
12-05-13, 12:02 AM
#13
If you want more even wear ... get a camber kit and straighten out that alignment so you have -1.5 to -1.3 camber. Then basically your whole tire will make contact with the ground.
Here is an EXTREME example ... basically shows the inner part of the tire is worn while the outer still has tread left.
(And yes.... I know most people buy camber kits to ADD negative camber for Stance/etc .. but thats not what they are truly MADE for.
)
Last edited by GiantsFan; 12-05-13 at 12:09 AM.
12-05-13, 08:10 AM
#14
Intermediate
Thread Starter
Well the thing is, I've been keeping an eye on tire wear, and it is not worn unevenly from what I can see. And Negative camber is not the main culprit of inner tire wear, am I wrong in that research? Toe angle is the primary cause of premature tire wear. I just read these things, I don't have personal technical training in tires or suspension to really know. But that's horrible tire wear shown above.
12-05-13, 10:20 AM
#15
Well the thing is, I've been keeping an eye on tire wear, and it is not worn unevenly from what I can see. And Negative camber is not the main culprit of inner tire wear, am I wrong in that research? Toe angle is the primary cause of premature tire wear. I just read these things, I don't have personal technical training in tires or suspension to really know. But that's horrible tire wear shown above.
At the camber you are at ... It's not going to wear that bad so you won't notice it. But look at your tires when they are worn down... The inner part of the tire will hit the wear bar when there is still tread left on the outside.