At first we were going to make covers for our Danard dinghy wheels but decided it was not worth the project time as we had other sewing projects to do. We figured the tires would be fine in the sun for the winter. Never thought about the plastic hubs.
While anchored in Santiago, Mexico our neighbors on s\v Airborne, Kathy and Hal (Barney) were telling us their tale of breaking a dinghy wheel. They landed in large surf with their dinghy and the plastic hub broke on the dinghy wheel. They said it was from the wheels sitting in the sun too long. Hmmm.. guess we will make those covers after all.