Rather than buying beach tires for my pier/beach cart, what do you think about finding PVC or Poly pipe that has an ID a little smaller than the OD of a properly inflated pneumatic tire? Let a little air out, slide a piece of pipe on (one that is wider than the tire) and then add a little of air back into the tire to secure the pipe? Please see the attachment for reference. Keep in mind that the actual pipe would be wider than the one pictured. Would this help as I trek up and down the beach?