Contador was 24.5 when he won his first TdF. Actually this was his breakthrough year, at the age of 24 he won Paris-Nice, Vuelta a Castilla and TdF in a row. Before that his best results were stage wins at Tour e Suisse, in Romandie.
ASchleck is 24 (turns 25 in June), Gesink is 23 (turns 24 in May), Kreuziger is 23 (turns 24 next week). On could argue that their careers have been better than Contador´s at the same age. If Contador was able to make a leap in his performances, why cant they? There are some other under 24 riders who have performed better than Contador at same age, it is just very hard to predict in what direction (and how much) young riders will improve...
ASchleck is 24 (turns 25 in June), Gesink is 23 (turns 24 in May), Kreuziger is 23 (turns 24 next week). On could argue that their careers have been better than Contador´s at the same age. If Contador was able to make a leap in his performances, why cant they? There are some other under 24 riders who have performed better than Contador at same age, it is just very hard to predict in what direction (and how much) young riders will improve...