How do the sprinters train to accomplish that speed? It certainly takes it turn on the sprinters, being able to actually sprint after 185 kilometres and 5, 5 hrs on the bike. Sprinters are normally shorter and more bulky than other riders. As a result they struggle if there are some climbs in the race. Not many knows that sprinters does not get carried to the finish line; in order to sprint they need to give away their capacity to climb, which in return gives them no easy days on the bike.
Here's how Tyler Farrar trains his ability to reach his top-end speed, normally sprinters do these after some hours on the bike as well.