I have a 2007 Cyclone 3795. I love it and it works well for my family. I was inspecting my tires the other day and noticed a few cracks in the sidewall. As I was researching for new tire purchase, I realized that the tires/wheels that came with the rig (225/75-15 load range D) can only carry 15,240 pounds, max. The rig is rated for 18,000 pounds. Why would a factory NOT put on wheels and tires that are rated high enough to match the weight rating of the rig? I can't even use a tire with a load range E, still won't be enough. I have to upgrade to 16 inch rims and tires at quite an expense. My fault for not noticing it on purchase day, but shame on Heartland for doing it in the first place.