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Old 07-01-2016, 03:15 PM   #1
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Stressing tires with sharp turns

I've read enough about tires (and hitches) here to last me a lifetime. So I thought it would be fun to have another tire thread.

Extremely sharp turns, as in backing up, put a lot of stress on tires as they pivot and grind as opposed to roll. Has there been any discussion here about that? Maybe some of the tire failures are caused by excessive wear due to frequent sharp turns? Maybe some tires are tougher and don't wear as much under those conditions?

Cheers,
John

P.S. I'm trying to get a few more miles out of the Omni Trails (whatever those are) that came with my trailer when I bought it before I switch to Michelins. As a longtime Porsche enthisiast it's hard not to favor Michelins, although I'll probably go with the 15" ones.
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Old 07-01-2016, 03:50 PM   #2
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Yes they scrub in those tight maneuvers, but I'm not so sure it is problematic stress. I do think that's why they no longer do tri-axle models, however. I think Dexter says it's a no-no.
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Old 07-01-2016, 04:02 PM   #3
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Wouldn't be a problem if Airstream would switch from tandem axles to single axle/dual wheels.
You could buy those plastic extended fenders like on the old chevy pickups. 8,000 lb Torflex axle with disk brakes should be fine.
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Old 07-01-2016, 04:14 PM   #4
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Duals would mean less room inside or a skinnier coach to stay within the 8'6" max width.
I will take tandem axles over dual tires any day. Single axle trailers tend to sway more than tandems.
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Old 07-01-2016, 05:07 PM   #5
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Mine leaves some nice tire marks backing it into my driveway.
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Old 07-02-2016, 12:57 PM   #6
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Originally Posted by John&Vicki View Post
Extremely sharp turns, as in backing up, put a lot of stress on tires as they pivot and grind as opposed to roll.
Trailer tires, together with spindles, are engineered to work "in tandem" to flex laterally.

What's important is that you not park with tires in "flexed" position. So before you park and "call it a day", roll your rig a few forward and/or backward so tires (and spindles) can straighten themselves out.

Tom
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Old 07-02-2016, 04:03 PM   #7
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Quote:
Originally Posted by John&Vicki View Post
I've read enough about tires (and hitches) here to last me a lifetime. So I thought it would be fun to have another tire thread.

Extremely sharp turns, as in backing up, put a lot of stress on tires as they pivot and grind as opposed to roll. Has there been any discussion here about that? Maybe some of the tire failures are caused by excessive wear due to frequent sharp turns? Maybe some tires are tougher and don't wear as much under those conditions?

Cheers,
John

P.S. I'm trying to get a few more miles out of the Omni Trails (whatever those are) that came with my trailer when I bought it before I switch to Michelins. As a longtime Porsche enthisiast it's hard not to favor Michelins, although I'll probably go with the 15" ones.
That is precisely why ST tires are made with stronger sidewalls and my reason for running only GYM's on my 26' Overlander.
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Old 07-02-2016, 05:23 PM   #8
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Because of the pivoting action, it is much easier to back a tandem axle trailer than a single axle trailer. The single axle unit will roll around a point thus taking much more room to turn. In our business we deal with all kinds of truck and trailer situations. Never heard of it being a problem.
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Old 07-02-2016, 05:25 PM   #9
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That's why you inflate the tires to max. Shown on the sidewalls; to give them some support in flexion.
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Old 07-02-2016, 09:34 PM   #10
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Bottom line: ST tires are made to handle that..Not so sure about LT tires
JCW
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Old 07-02-2016, 10:11 PM   #11
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That is precisely why ST tires are made with stronger sidewalls and my reason for running only GYM's on my 26' Overlander.

Yup, they do have Super Beefy sidewalls unfortunately they forget to glue the threads on the same beefy way. My sidewall was like new when the thread peeled of and beat the crap out of the side of our Airstream.
And that is my reason for never ever running GYMs on our trailer again.
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Old 07-02-2016, 11:32 PM   #12
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Frank, what year tires did you have that failed. There were a number of the mid 2000s era ST tires that did have problems. GYMs were among trailer tires that had a number of failures then. I thought, however that from approx 2010 and later those ST problems had been corrected. In fact I wonder if any one has real data that covers ST tire reliability for the last 5 years or so.
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Old 07-03-2016, 03:37 PM   #13
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Smile Stressing tires

Ever notice how big rigs often have lift axles. Beyond scrubbing the tires you also break the bands (you don't realize it until later) then you have a catastrophic tire failure with a perfectly good looking tire. As a riveter I am also a owner of over the road trucks and semi trailers, and this is a all to common very expensive problem. Just imagine cranking your A S over a curb on a tight turn maybe while parking or getting out of a place you should not have been.
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Old 07-03-2016, 05:31 PM   #14
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That is precisely why ST tires are made with stronger sidewalls and my reason for running only GYM's on my 26' Overlander.
Agreed... and why I replaced our GYMs with GYMs when they were due for changing at 5 years of age, 4 years ago and they're still fine.

Additional info: "A marathon experience".
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