Blow outs and tires
How many of you have had a blow out? I now carry two spares for my trailer. I've tried different tires and always have what the PSI is on the tire. Never had one go on any dirt roads always on the ...
Forum Discussion
CapriRacer wrote:dsrace wrote:
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the info is not easy to find but if one simply asks themselves..... why do tire manufacturers advertise more fuel efficient tread and/or tire compound in trailer trailer tires? what are there explanations? .
"Our most fuel-efficient trailer tires
Reduced rolling resistance and increased fuel economy.
Discover our tires designed for fuel savings, durability, and exceptional traction for driver confidence."
borrowed that directly from michelan's trailer tire web site.
most of the info you will find are from fleet companies. 3% reduction is a lot with an over the road truck. in a pick up, 3% isnt much of anything. wind is a bigger factor but every little bit still helps so why not?
There are 3 things that affect tire rolling resistance: The amount of deflection (meaning mostly inflation pressure), the amount of material (mostly tread rubber), and the material properties of the material (again, mostly the properties of the tread rubber)
You're quoting Michelin's truck tires. They don't make RV trailer tires, so be careful there.
So applying those three things, my best guess is that they don't have as much rubber in their trailer tires, and the tread compound is especially formulated for low rolling resistance.
Could that be applied to other tires? Of course, but there is a tradeoff.
There is a technological triangle for tread rubber compounds involving treadwear, traction (especially wet traction), and rolling resistance. Change one and you affect one of both of the others.
Yes, there can be differences in tread rubber compounds that improve RR without affecting that 3 way relationship, but those are small compared to the big triangle.
i did not know that Michelin didnt sell st tires for campers, thanks for the letting me know. that was just the first link that popped to up to illustrate there are some differences and why i referenced those were fleet.
my only point was that i felt the difference in rolling resistance between 28" tall tires to 33" tall. i read the article stating basically what you stated and i am sure it is true. still, a larger od tire made a difference in my case. they were both 10 ply and on the same trailer. now they do offer 12 ply st tires and maybe they higher psi in those would make some difference?, i truly have no idea.
