I had a set that went from 1984 to 2004 with virtually no repairs. I lost an end cap (Daytona, 1995) and one of the inflation points leaked. I fixed it by shoving a plugged inflation needle into it. I sold them in 2004 for $150 and got one of the "EuroTrax" for my Tiger. What a POS those were. They got sold with the boat in 2008, and I'm back to owning another set of CatTrax. I'll probably die before they do.