I'm building a single wheel trailer.
This trailer is going to have a bed on it that will add stiffness and all of the other components are overkill. It seems the weak link would be the bends. Is there a specific minimum radius? What radius would be ideal for 11ga. (1/8" wall thickness) 1 1/4" x 1 1/4" square tubing to be bent at 90 degrees and still retain most of its strength? Is there a "trick" to it?