75mph ST tire
I offer this only as info for the always entertaining and ongoing argument....ooops, I mean "discussion" regarding tires. I was out this morning shopping for a new horse trailer, so of course I looke...
Forum Discussion
CapriRacer wrote:
In general, yes, that is a good thought process. But I would have done it differently.
First, I wouldn't tie the tire's load carrying capacity to the axle's load carrying capacity as it just might be that the vehicle manufacturer didn't do a good job of this.
Second, I think every tire should have a 15% design reserve capacity. This is in line with what the car and pickup truck manufacturers use - and they have a ton of experience and good sources of feedback.
Thanks again for your comments Barry. Always good to have an engineers point of view.
I do understand that some RV's are made with axles that are barely ( or not even ) up to the load task. Buyer beware there for sure.
In my case under my Funfinder, I have tandem 2800 pound axles. On the CAT scale, I have between 3400 and 3500 on the axles. I end up with 3500 lbs sitting on 5600 lbs of axle capacity sitting on 7500 pounds of tire capacity. This has worked well over the last almost 30K miles.
Again, the trailer owner needs to do some easy homework and simple math to ensure they can achieve good reserves.
