ST trailer tire 75 mph rated
For those who prefer to tow a little faster than 65 mph, as well as for those who would like some extra cushion in their tires' speed rating, I recently learned that Hercules ST tires are rated for 75...
Forum Discussion
myredracer wrote:gmw photos wrote:
As one of the tire engineers who used to comment on this forum has said, you are in effect running these tires "near or at redline, when towing at these speeds".
Who here thinks running your trucks engine near or at redline all day is a good idea ?
One more reason to buy products that have more reserve head room above what we normally need to operate.
EDIT: which sort of brings us full circle back to the original title of this thread. If you like ST tires, and if you can find one with a 75mph rating, then that gives you additional reserve for that aspect of performance.
Is it possible that Marathons (compared to the typical ChinaMaster tire) have more of a built-in reserve and are a better tire if GY states it is okay to run them at up to 75 mph? Either with the added psi or occasional 65+ mph without adding psi?
I suppose anything is possible. I also would suspect that none of us outside of goodyear engineering knows what is or is not different about these tires compared to others in the same category.
The whole idea of being able to run these tires at 75 psi seems contradictory to me. If 75 really is the max number, then why don't they mold that number into the writing on the sidewall instead of 65 ? If it's an "advantage", you'd think they would want to capitalize on that, and make it easily known. It's like they are trying to keep some critical piece of usage data secret. That doesn't make sense to me.
