Forum Discussion

Atlee's avatar
Atlee
Explorer II
Jul 11, 2013

No need to switch load ratings for ST tires?

I'm getting a "new to me" 2012 Koala 21CS tomorrow. It has Goodyear Marathon ST205/75R14 C tires.

I know a lot of folks are either wanting to go up in tire size, or at least in load rating. I understand it usually due to the small margin between the GVWR of the TT and the load rating of the 4 tires.

In my situation, the trailer's GVWR is 4950#, and the load rating of the 4 tires is 7040# for a margin of 2090#. In this case, the weight margin of 2090# should be more than enough, and I shouldn't automatically look for a higher load range tire. Correct?
  • In theory....load the trailer for camping and then get it weighed. Also be sure to keep the suspension lubed, equalizer link in good working order, and tow the trailer as level as possible. Even though you are under ratings overall, that doesn't mean that the load is distributed evenly among all 4 tires.