First to John, my other half just walked by and asked me when I had the photo taken? (It was your post) Same GS and white helmet! Then I let her read your post- "Gee, kind of like how you felt last night after replacing the hydrant and fixing the float on the stock tank! You guys are all the same!" Now that's a compliment! Just finished my morning walk and third cup of coffee and now its riding time. And to Mark... Strange but none of my replacement parts are due to bike crashes. Just "life", first knee blew out from a bad landing during a training exercise when I was wearing Uncle Sam green. I've lead a most adventurous life. Construction work, cowboyin', oil fields, and years as an investigator all had some rough and tumble times. Running a trap line as a kid and being a canoe and hunting guide- along with a few miss placed hammer swings and ornery cows all add up to a whole bunch of arthritis. I've known my doctor since he was in high school and he knows me. All I can say is "use it or lose it" is pretty spot on. Even that's a fine line though. Too much to soon can set you back also. "overdo it and you'll be recovering in a nursing home" was the phrase that finally got through to me. Take it slow, buy the big bottles of Ibuprofen, and focus on the fun factor. Only you can decide if its worth it or not. All the best to both, but Im "burnin' daylight" and there couldnt be a more perfect day for riding!