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Old 04-27-2014, 06:06 PM   #1
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Tire Pressures and Temps

Took the 34.5 BHTS out on its first trip this past weekend. I have the TST 507 flow through system. Was a little unsure how well it would work. I guess it did ok. Read the tire pressures and temps without ever losing the signal. I averaged 87-89 PSI readings and 90-94 degree temp readings.

I have the standard Jayco Chinese Tow Max tire (I know they're junk, I'm just trying to at least get a year out of them before changing them). Max cold psi is 80, I made sure they were at 80 psi on my manual tire gauge. The 507 showed 78-80 psi starting out.

Just wondering what other people are getting as PSI and Temp readings while driving? I was cruising at a blistering 66-68 mph. Never got over 68. Any thoughts regarding tire pressures and temps while driving?
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Old 04-27-2014, 06:18 PM   #2
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Everything that I've read recommends never towing over 65mph. I don't have a tire monitoring system yet, but I had the Tow Maxes removed from my 5th wheel the day after I bought it and was able to unload them on Craig's List. Too many people that I know have had them do major damage to their new RVs within the first 6 months of ownership. I run the Michelin XPS tires which are about the only tires with full steel belting on the sidewalls.
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Old 04-27-2014, 06:55 PM   #3
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My tire pressure goes up directly proportional to ambient temp and speed. 10 to 20 psi.
Same with tire temp
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Old 04-27-2014, 08:35 PM   #4
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Hello mallardtuff. I have the same trailer, tpms system, but swapped my tires to Goodyear marathons before my first trip due to the first trailer I ordered came in with a blowout and damage from the tow max. Our 2nd order showed up unharmed but I just couldn't take the chance. Swapped out the valve stems to metal when I changed tires. I feel this is a must with the added weight of the sensor.

We have only been on one trip so far and the system worked great. Pressures rose to about 90 psi and around 90 degrees with around 75 degrees ambient temp running 65mph. It sounds like your readings are right on target. I hope this helps.

Happy camping.

Tim
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Old 04-27-2014, 09:01 PM   #5
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I can not understand why Jayco still stands behind the Tow Max tires. There have been many posts to the effect that the tires are junk yet they continue to install them on their RVs. I would gladly pay more upfront hence saving money in the long run for decent tires such as Michelin, Goodyear or whatever. I bought a 2014 Jayco Eagle $50k TT with the Tow Max tires from the factory and after reading all the posts I am afraid to tow it down the road even though it is brand new. It is my life and my family's life that is on the line. It is hard to comprehend just how much the almighty dollar controls everything. I will have to change out the Tow Max tires for Michelin's just to have some peace of mind.
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Old 04-27-2014, 09:36 PM   #6
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Tim, I looked at the Goodyears, my concern there is that they are also made in China. Heck the way things are these days, maybe the same factory as the Tow Max. I've always had goodluck with Goodyears. I also am looking at Michelin's, my concern there is the size 235/85/16, the load rating for dual usage is only 2778/per tire. I scaled my rig today and the trailer axles weighed in at 9600. With the Michelin's, am I cutting it too close on load range? Also, it won't hurt anything changing from 235/80 to 235/85? I see there is about 1" difference in diameter. Kind of leaning towards the Marathons right now.
I'm dropping the trailer off Tuesday to have metal stems and balancing the tires, before heading to Talladega Thursday.
Thanks,
John
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Old 04-27-2014, 10:11 PM   #7
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You're right about them probably being made in the same plant. Who knows anymore. My 2010 eagle super lite 28.5 bhs had marathons and I had no issues with lots of miles. That's about all I can go on.

On another note, I noticed last week that a 14 ft utility trailer that I purchased from my father in law three years ago has tow max LTs on it. It's been to california and back twice, from Texas, uncountable trips to the deer lease and Lowes, sometimes probably overloaded and pressures not always checked nearly as close as I stress on my FW. All since I've owned it. Never really paid any mind to the tires because the tread has stayed good and never a problem. Just figured I should check the, finally due to age.

Tires are always a big concern and chances are I would have been fine with the originals on the trailer. I did notice that Tow Max changed from ST to STR, whatever that means, but they claim to be a better tire designed specifically for RVs. The deal breaker was my local tire dealer gave me $60 each for my tires when I bought the marathons. Kinda made my mind up for me.
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Old 04-27-2014, 10:22 PM   #8
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Jeeeezee, now I'm worried about the tires on my new 5er.

What is the consensus: replace with ?
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Old 04-27-2014, 11:32 PM   #9
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Quote:
Originally Posted by Jmooney View Post
Jeeeezee, now I'm worried about the tires on my new 5er.

What is the consensus: replace with ?

Ah...no!

This thread is about Tire Pressure Monitors...get some and 'monitor' what you tires are doing.
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Old 04-28-2014, 03:09 PM   #10
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mallardtuff (the original poster) brought up both subjects of air pressure monitors and Tow Max tires. I think that makes it fair game to talk about tires to.
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