70 years young here. And I count myself lucky-my wife is my mtn.biking partner. My ancient GT (well, the frame anyway-most all else has been replaced/upgraded at one time or another) and my wife's '98 (I think) Kona Lava Dome still get us around on the trails. Nothing too crazy, but just glad we can still get out there. And she's a decent trail rider to boot! Her Kona is dark purple, and with the brightly colored Kona logos, is one sharp looking bike. Functions well also.