My knees are starting to go. My right knee feels kind of burning or inflamed after heavy cycling days.
I lowered my seat to make it more normal, but that bike hurts my knees because I am still stomping in the smaller space.
I need to think Flintstone spin as some kind member recommended here on these forums.
Higher saddle, lower gears, more cadence, smoother stroke, practice on rollers and maybe glucosamine sulfate.