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Super Single started cupping on inside of tire

I have Super Singles Michelin X-one XDA Energy and notice that they are starting cupping on the inside a little. Does anybody know what cause this. I run 120 psi on the tires and they have bout 65,000 miles on them. Also i have the 2 in offset rims. Could it be the tire pressure, or something more like the rims.

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7 Answers

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Michelin does not recommend 120 lbs they recommend 100 lbs. Now when I was running 120 Ibs I had all sorts of problems ranging of from irregular tire wear to breaking air can supports now that I went back to 100 lbs it took care all problems I was having

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your wheel bearings are loose.

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Tire are cupping on all tires, a little but one is worst then the others

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I have lowered the tire pressure to 105, and added centramatics and it seems to stop the cupping of the tires. I due think that alot of the issue is the high tire pressure. only time will tell.

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Thanks for the input, will try 100 psi, and check the bearings.

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: "Using wide-base singles with a standard axle, you need a 2-inch offset wheel," explains Bill Hicks, director of product development and planning for trailer suspension at SAF Holland. "When you go to a 2-inch outset rim, you move the centerline of the tire farther out from the centerline of the bearings on the spindle. That can induce bearing wear as well as inner-edge wear on the wide-base tire." According to Kurt Burmeister, ArvinMeritors general sales manager for North American field operations, switching between dual and wide single tires with 2-inch offset rims could significantly alter bearing loads and the service life of both the bearings and the hub (and cause inner shoulder wear on tires, too). "If you put a wide-base single on a conventional track housing, you have a tendency to load the outer bearing in the wheel-end system more than it is designed for. Youll reduce the life of that bearing, and in the most severe state, you''ll see the bearing degrade, and possibly damaging the spindle itself," he says.

Update

We have the same exact issue, same tires and wheels. The above is the answer i got from another website. It looks like we have to get rid of the 2 " offset wheels.

Tire shops can't give us any answers so we flipped the tires on the rims and switched sides to save the tire. Did not solve the issue. Gonna have to see Eldon or Chad.

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I've been running 2 inch offset wheels for 7 years on 2 different trucks without any of tire wear your talking about here The only time I had tire wear issues was when I tried to run the tires over inflated on my super singles

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I run 2" offset wheels ahi turned the rims inside out and that makes a 1 inch inset no problems yet and good tire wear

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This is a few years later & I'm considering doing the same to my 2" offset wheels on my 03' Pete 387 with Dana DSP40 axles. Mounting my left side wheels to the right side, etc. I was wondering if anyone has done this successfully, and for any period of time?

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Brandy Taylor will be eternally grateful.
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