Forum Discussion

huskym1025's avatar
huskym1025
Explorer
Oct 28, 2014

Tires

I am in the process of replacing my tires on my 25' TT, dual axle, so there are 4 tires total. The tires that are on the TT now are a load C. Should I put the same load class on or move on to a Load D tire? Do I need to have the tires balanced? Also, has anyone had any problems with the Goodyear Marathon or Towmax tires? BTW, my specs for my TT are... UVW 4680 and GVWR 7500. Thanks!

19 Replies

  • Lynnmor wrote:
    I don't know if anyone on this forum that has ever checked the balance of their brake drums/hubs. You will find that most are extremely out of balance and after correcting the tire balance a problem still remains. I balance the entire assembly on my trailers.


    I have had my tires balanced in the past and now run centramatics, and both provided an noticeable improvement but the centramatics are better.

    Since I don't ride in the TT it's subjective, but the interior seems less effected with the centramatics.
  • I don't know if anyone on this forum that has ever checked the balance of their brake drums/hubs. You will find that most are extremely out of balance and after correcting the tire balance a problem still remains. I balance the entire assembly on my trailers.
  • Like the OP I am looking for new tires. My problem is, I have 4 load range C tires rated at 1820# per tire or 7200# per four. My TT has a gross weight max of 7700 # so I guess the factory assumes at least 500# on the tongue. :h Fortunately I do not come close to the max load.

    My plan was to switch to load range D but I have not yet found an ST 205 75 R 15 in that load range. According to the internet they are out their but I have not found a local source.

    Since the objective is to pick the best third world country you wish to have build your tires; I plan on dealing with my local tire guy and getting the full replacement guarantee.

    If you look up “Tire Safety with Roger Marble” on the web you can get a good overview of tire types and functions including blowouts.
  • I've been very happy with my Marathons. First set was load range B and 10 years old. Current set is load range C and good so far. The increase in tire pressure maximum from 35 psi (range B Max) to 50 psi (range C Max) seems to have made the biggest and best difference.
  • Only tire I ever exploded was a Good Year Marathon. Never again. Maxxis is the way to go.. Yes a tire rated to the original is fine, and yes balance them
  • I also have had 2 sets of the Goodyear Marathon's and got 5 years out of each set with no problems. I don't have them currently as we just bought a new camper back early this year but I would have no problem with going back to them. Yes by all means have them balanced. Now I keep mine covered at all times when camping and the rest of the time it's in a completely enclosed storage unit so the tires are not out in the weather and sun.
  • I had good luck with Goodyear Marathons 20 years ago, but haven't run any lately. Had good luck with Maxxis and currently have put 3,000 miles or so on a set of Towmax STR. So far so good.

    I run 225 75 15 E's.
  • I have had great luck with GY Marathons on 2 different TT's and plenty of miles.

    If you can get a LRD, and yes balance them.
  • What size tire?

    On the corporate website of Towmax, they manufacture a lot of off brand tires, one of which was a "Chinese" brand that I replaced within a few months of owning the trailer.

    If you have a 14" tire, I would recommend the Kuhmo Radial 857. It has a 2271 lb/99 mph speed rating. When we went to Colorado this past summer, I could tell a significant difference in the ride of the trailer.