Interesting, I wonder what criteria you look for in a cyclist. I mean it's not like some sports (basketball, rowing etc.) where extremes of size offer an obvious advantage.
School sports spotters, coaches suggesting kids try out for higher level comps, scouting at state level races, then onto AIS for proper testing.
Some of our Olympic team cyclists were doing well in other sports where the ability to pump a shitload of O2 around is important - running, mtbing, tri and if those athletes didn't quite get on with the sport they were in or were injured or something and couldn't continue they'd possibly be encouraged to have a crack at road cycling.
School sports spotters, coaches suggesting kids try out for higher level comps, scouting at state level races, then onto AIS for proper testing.
Some of our Olympic team cyclists were doing well in other sports where the ability to pump a shitload of O2 around is important - running, mtbing, tri and if those athletes didn't quite get on with the sport they were in or were injured or something and couldn't continue they'd possibly be encouraged to have a crack at road cycling.