Saw this article today in all St Journal about team of 4 guys in their 70's who did a bicycling event called RAAM. It is the Race Across AMerica bicycling 3,000+mi nonstop from west to east coasts. Not only did they finish, but AVERAGED 19mph (inc rest/stops/etc.). Accompanying interview says they trained by riding 1200mi per month.
Don't these guys know they're OLD
http://online.wsj.com/news/articles/SB10001424052702303949504579262711575922246
Don't these guys know they're OLD
http://online.wsj.com/news/articles/SB10001424052702303949504579262711575922246