Wheel Well Liner
I have a 2013 Mini-Lite 23LB I bought new two years ago. I've been reading some of the tire threads on this forum and decided to take a close look at my tires. I was surprised to see something I've hadn't noticed before: a wheel well liner hanging down, close to the top of one of the tires. I removed the fender trim and found almost 1 inch of calking between the liner and the bottom of the outer wall frame. No wonder the liner wasn't attached against the wall frame and was hanging down near the tire. Who ever put this together didn't give a damn about quality as long as most of this sloppy workmanship was covered by the wheel well trim. There had to be contact between the wheel well liner and tire every time my TT hit a good size bump. There were also many voids in the caulking that may have allowed moister to enter the area between the top of the wheel well liner and flooring. Luckily, I didn't find any water damage there and that tire still looked good. I repaired this by first cleaning the outer top of the liner edge with acetone (where the old caulking was), added a fresh, thin, bead of caulk and reattached the liner to the bottom of the outer wall frame with four stainless screws with washers. Hopefully I caught it before any tire (or other) damage occurred. Below are a few "before & after" photos to better explain. With shoddy workmanship as described above (I also read about it everyday on various FR threads), it's no wonder there are many tire, amongst other, issues with RVs today.