Not whining cause I knew it was gona happen one day but it came sooner than I thought.. Doc said right one is bad left is worse,, nothing left in the joint,, soo he said when I cant take it any more call him,,, I jumped (crawled) on Lil Red and went to lift it and the knee caved in and it went right back down,, good thing the kick stand was down or I would have been up shyt creek with out a paddle. So while I have been told it aint no big thing, and Doc explained it,, still I would like to hear from somebody that's been there and done it. And then he said I should think about the right knee as well.