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 I have been wondering about this as i roll down the road on my serioiusly outdated tires and driving 55mph getting passed by a bunch of RVs.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.
2000 K3500 CCLB DRW 6.5 TURBO
2009 Cougar 320 SRX
2007 atlas 24 auto hauler
1987 GMC origional low miles
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.
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!
My posts shouldn't be taken for factual data. They are purely fictional, for entertainment purposes and should not be constituted as actually related to scientific, technical, engineering, legal, spiritual or practical advice. Amen.
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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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.
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.