I see them at every race, 75' or 80' long. I saw that Powerhouse Coach on Epic Rv's towing a good size stacker and a boat. I assume people are not getting tickets, but I am hesitant to purchase something that is 10 feet over my states legal limit.
That would be me, for now.
How about over length? Almost any TC with a stacker is over 65'. It seems like more than 1/2 of the states have a 65' max combo, unless you are a tractor trailer.