Well, I'm 66 and two summers ago, my wife and I (she's 20 years younger than I) rode for six months mostly off road on the great trails around Moab. However, we did use good judgement because some were beyond our skill level. She rode a Kawi Super Sherpa and I rode a DRZ 400. Nowadays, we ride road bikes; '88 K75 and she has an '08 Versys. I ride mine nearly daily as primary means of trans. I always feel much better when I ride, both physically and mentally and she loves to ride. We're planning some longer trips this Spring/Summer. As someone said: "You don't stop playing because you get old, you get old because you stop playing".