profdant139 wrote:
..... Why do trailer manufacturers recommend ST tires? Are there government regulations that require them to do so? Or government standards that recommend that they do so? .......
.......Bottom line -- I still don't know the answer to my question. .....
profdant139,
I am going to try to answer your question.
Manufacturers of motorcycles use M/C tires. Manufacturers of Passenger cars use P type tires. In other words, each type vehicle has a particular type of tire that is appropriate - and in the case of travel trailers it is ST type tires.
The advanatage of an ST tire is that it carries a lot of weight compared to how big it is. That makes it easier to package.
Are there goverment requirements for this? No!
Are there government recommendations? No!
Can a P type tire or an LT type tire be used on a travel trailer? Sure, but a P type tire requires more space to carry the same load and LT type tires don't come in the smaller sizes.
So it makes sense that a trailer manufacturer would try to use ST tires across the board - from the small trailers to the large ones. It simpllfies the engineering and the supply chain.
And just to clarify a point. Trailer manufacturers don't recommend ST tires, they specify them. It may seem like a minor point, but there is a clear difference.
