Originally Posted by dave3235
Also maybe take the rivets out, and put nut and bolt with round dome head nuts as these work loose. Maybe this us where the problem lie, THE RIVETS LOOSENING. I AWAITE MORE REPLIES AS KNOWLEDGE IS KEY !!!!!!
Dave, we have installed thicker rivets than factory delivered when changing new Z rails from previous broken ones assuming would achieve more rail rigidity. Has not helped a bit due that you can't avoid the hinge, flexing effect on Z rails while jumping, riding extreme choppy seas, much worst with underinflated tubes.
Check if a wooden carpentry could build you one long wooden piece side joiners and forget all about Z rail flexing, will work much better than if counting with 2 per side.