Flat spots on front axle tires

Have you scoured the internet to see if other owners of the same rig are experiencing the same issue? If this is not a common problem, then its likely not a result of a design deficiency (note that there still may be product or installation deficiency). I would also contact the manufacturer, as they may have some familiarity with the issue.

In the event that you're having issues with the brakes and rotors, those can be replaced for less than the cost of tires.