Originally Posted by Seann45
IF your tires are ST they are only speed rated for 65 mph max.. Don't blame the tires if you have a blow out going faster..
I agree and have evidence that going over 65 mph with ST tires are a recipe for disaster. I just sold my Eclipse 19FK TH which a couple years ago I installed brand new load range E ST tires and blew them up cold to 80 psi thinking I could now put the hammer down. Well, on I-15 in NV heading south in about 100+ degree weather at 75 mph, I blew two tires within maybe 50 miles or so between with one destroying the street side fender skirt. Needless to say, all (4) tires ended up destroyed with (2) tires suffering tread separation in that one trip. I later discovered that 65 mph is the max. speed with any ST tires even though I upgraded to load range E. The following year in late 2015, I actually drove to WV from SoCal and back and I kept the speed at or under 65 mph and did not suffer a tire problem whatsoever. Granted the trip started out in September which was much cooler than the 100+ degree days from the disaster trip the year before but I think having all four tires being destroyed is true fact evidence that speed kills due to the friction and heat generation.
With all that said, I will be upgrading all (5) tires on my soon to be new TH specified in my signature below. I will be first looking into the fitment of 235-75/R16 G rated Sailuns and if fitment is a problem, I will be going with the 17.5" wheels and Sailun H rated upgrade.
I drove an 18 wheeler in all 48 and Canada for over 10 years after my military stint in the mid seventies so, I have good experience with heavy trailer hauling however, I have learned a good lesson and will now keep my speed down to 65 mph or below at all times even with the upgraded wheels and or tires.