[QUOTE=Bill-GA] New RV product?
If moisture under the wheels is the problem how about a plastic wheel pad with holes in it to drain any water?
Lynx leveling blocks will do this just fine. They do fade (color) rapidly in the direct sunlight, however.
I do nothing other than put covers on the tires, if the camper is going to be sitting for a while (I park on an asphalt driveway). Thus far, no problems. I have the wheels off annually for wheel bearing maintenance and this is a great time to do a good inspection of the exterior of the tires.
I'll fan the flames a little bit and add that I read (somewhere) that tires should be replaced every 5 years, regardless, as they deteriorate internally - even though they may look fine from the outside. (Could this have been written by a tire manufacturer or seller?

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