Bike porn

No am not joking whatsoever. Olympic kerin medal from memory was won on a round tube steel bike with traditional wheels...no wait a minute it was Chris Hoy on a full carbon frame with carbon wheels, etc, etc

aaaaand a wikipedia pages on Keirin race;

http://en.wikipedia.org/wiki/Keirin#Equipment

also it's generally about the rider, not the bike, Theo Bos was invited to a Keirin race, and got beaten;

YouTube - Theo Bos vs Japanese keirin riders 02