New rings will probably fix that. Why not at least get a cost estimate to have them replaced, or do it yourself if you're handy with tools. Regarding your comment about "better than any 22" mower", I agree. Actually, I also had another mower that was about that size. I ran them both over a duration of about 4 decades with one being a backup for the other. The other was a self-propelled, 21" commercial Bob-Cat, but I sold it about a year or two ago. It was good too, but the Hahn-Eclipse was better. The Bob-Cat had a 4HP engine, but neither could climb some hills I have very well. My Quick 36 doesn't have a problem with the hills, however, and it's actually an overkill. Over the years I had also tried a few other 21" or 22" mowers that had 6 and 6.5HP engines on those hills, but they weren't as good as the Hahn-Eclipse, neither in hill climbing nor in discharging the grass clippings. The worst of the others was a 2-cycle Lawn-Boy which I thought might be best for the steep hills, but I was wrong and it failed the test. I suspect those 2-cycle engines are no longer available on Lawn-Boy mowers, but I was pleased that Home Depot took mine back with no questions asked.