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Open Roads Forum  >  Towing

 > tire failure from excessive speed?

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flint mi

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Posted: 07/08/12 09:21pm Link  |  Print  |  Notify Moderator

Riddle me this, if we all know that trailer tires arent rated for the speed that traffic normaly travels at how many of these ST tire failures are being caused by driving to fast. I have been wondering about this as i roll down the road on my serioiusly outdated tires and driving 55mph getting passed by a bunch of RVs. In the last three outings I have probably seen a dozen vehicles that had passed me sitting beside the road with at least one exploded tire.

We all know that flex creates heat and the faster you go the more flex you create. After long stints at speed the tires can become overheated. This is why cars built for extended long fast runs are adorned with those rediculously low profile tires. However flex is needed for traction and ride quality.

Any thoughts on this.


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Old-Biscuit

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Posted: 07/08/12 09:31pm Link  |  Print  |  Notify Moderator

Under inflated....overloaded.....exceeding tire speed rating....parked for extended periods

Then throw in poor quality/materials/workmanship coupled with twist/torque of trailer axles

All tire killers.


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Oldtymr

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Posted: 07/08/12 10:19pm Link  |  Print  |  Notify Moderator

We have run at about 65-67 where permitted for 8 years on our 5er with no problem (knock on wood). Oldtymr says pump up the tires to the pressure on the tires ... when they're cold! We have friends who don't do that, and they've had blow-outs. Two of those couples won't tow anymore because of blow-outs, and that's sad.


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SooperDaddy

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Posted: 07/08/12 09:56pm Link  |  Print  |  Notify Moderator

I saw a whole formula chart once here on the forum that went into great detail about what an ST tire should be ran at using the heat of the current weather, speed and load to match the tires to the air pressure they should be ran at.

We have to tow at 55 mph here in California by law..and that's my comfort zone pretty much. And I air up to what it says on the side of my Jayco. Never had a tire failure either. Always Goodyear Marathon ST's over the last 7 trailers...USA made, Made in New Zealand and Canada. Not Chinese made tires!


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tsetsaf

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Posted: 07/08/12 09:53pm Link  |  Print  |  Notify Moderator

If you spend any time on this forum you will know all about tires... but members of this forum make up a very small percentage of the driving and towing public. A vast majority of folks have never considered the result of their speeding ways.


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Posted: 07/08/12 09:42pm Link  |  Print  |  Notify Moderator

Old-Biscuit wrote:

Under inflated....overloaded.....exceeding tire speed rating....parked for extended periods

Then throw in poor quality/materials/workmanship coupled with twist/torque of trailer axles

All tire killers.


Run LT "E" rated tires, then going 60 to 65 is not an issue. Would not tow any faster than that.


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old guy

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Posted: 07/08/12 11:23pm Link  |  Print  |  Notify Moderator

I was going 50 mph once and had a blow out. Forest river put underrated tires and two different sized tires on my TT.

christopherglenn

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Posted: 07/09/12 01:52am Link  |  Print  |  Notify Moderator

Prior to reading on these forums that trailer tires were different, and had lower speed ratings, I had no idea. Looking closely at the sind of the tires, my old tires did say 65 mph max, but if I didn't know to look, I wouldn't have.


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Old-Biscuit

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Posted: 07/08/12 11:44pm Link  |  Print  |  Notify Moderator

rhagfo wrote:

Old-Biscuit wrote:

Under inflated....overloaded.....exceeding tire speed rating....parked for extended periods

Then throw in poor quality/materials/workmanship coupled with twist/torque of trailer axles

All tire killers.


Run LT "E" rated tires, then going 60 to 65 is not an issue. Would not tow any faster than that.


I have LT 'G' rated tires speed rated at 75 mph.
I don't tow at that speed nor was my post specific....it was a generic answer to OP's post

Mark and Linda

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Posted: 07/09/12 05:15am Link  |  Print  |  Notify Moderator

I have been towing at speeds close to 55 mph. It feels comfortable for me doing this. Recently I made a post about some guy towing at speeds close to 80 mph. I passed him in my Miata just to see what was pulling that tt so fast. Yesterday I was going down the interstate and noticed a tt that was being pulled in my rearview mirror. I slowed down some some he could pass me, just to check out his rig. He was from Alaska...doing 55 mph. A very good speed for the conditions....hot, very hot weather here in Middle TN.

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