Goodyear Marathon load d trailer tires

westend wrote:

Adam H wrote:
I have run GY Marathons on 2 different TT for the past 10-15 years and the only time I had one blow out was after hitting a hunk of metal on the road. Everyone here always preaches the 80% rule when it comes to towing capacity as a "try not to exceed" measure. I believe that to be true when it comes to tires also. I try to purchase tires with enough load rating so if the camper is maxed out, the tires are only 80% of capacity including the tongue weight if possible. If you take a look at the numbers, I'll bet the recommended tires are barely adequate, and this does not account of uneven loading. (axles too for that matter). Using this method leaves me plenty of cushion to account for impacts to the tires while traveling and uneven loading of the trailer. So far, so good....

Adam

Adam,
Don't you mean that you select tires that are 120% in capacity of the total weight of your trailer? 120% of weight capacity would leave you with at least a 20% cushion of the weights involved.

Yes, So if my camper is maxed out, the WEIGHT on the tires is 80% of the tire's capacity.

My PUP maxes out at 5600#
My tires have 1710# capacity each
1710 x 4 = 6840# or 82% of tire capacity (leaving tongue weight aside)

I did the same with my previous two TT's. Though it was much harder to achieve my goal, I got close....

My point is that tires (even ST tires) are pretty good compared to years past. Just don't run them maxed out on the 110 degree day, through the desert, down a new blacktop at 65mph. That's a lot to ask...