rationale behind the 10% rule (7% in Europe)???
I could not find the proper sub forum to start this thread, hence I am posting it here.
I understand that the recommended load distribution is one which results in a tongue weight of 10% of the total gross weight of the trailer. In Europe that number is 7%.
How "hard" is that number, is there a "safety margin" (is there a no go zone), and why is it 10% (and not 7% as in Europe)?