my dad had problems with the rims leaking also, he put tubes in and solved that problem, but he does not ride it much only ice fishing and deer hunting and drives it like it is sunday driver. I also bought the good tires with rim protector and have had no problems with the exicutioner or mudzillas, I have not used the tire balls, but they are an option or maybe you will have to replace the rim that is leaking or fill them with cement!!!!!!!!!! then you would have no flats lol!!!