Originally Posted by
donrhummy
When? Never if you don't want it to.
Ned Overend was tested last year and had the same VO2Max at age 54 as he did at age 28 when he was a pro mountain biker.
At racing age 55 Ned won the USA Cycling 2010 Mountain Bike Nationals Granby, CO single speed. It looks like that is for all ages. Typically, he wins the Mount Diable Hill climb in the P/1/2 category but this year came in second. He often races in P/1/2 road races locally. Another one is Larry Nolan at racing age 52 who terrorizes the 45+ peloton. Last year, he set a world record in the age 50 to 54 2K pursuit 2:17 in Australia and won 4 gold medals at Masters Track Worlds.