Tyler Hamilton, Lance Armstrong's former US Postal Service teammate, questions whether Armstrong will fulfill his promise to tell the "truth" in the two-part ESPN 30 for 30 documentary, LANCE Despite doing so, Armstrong suggested on the Off the Ball podcast (opens in new tab) that he is still keeping secrets.

Reacting to part one of the show, Hamilton suggested that only half-truths were being told, not only by Lance Armstrong, but also by many of his contemporaries.

"Telling the whole truth has consequences. 'You may tell half-truths and still stay in the sport. If you tell the whole truth, as I did, you're out."

Hamilton rode with Armstrong as a teammate from 1998 until Armstrong switched teams in 2002 and became a Grand Tour rival. After being banned for blood doping and losing his 2004 Olympic gold medal, Hamilton made a comeback in the shadow of Operacion Puerto and was banned for eight years for a second doping positive.

He then co-authored The Secret Race: Inside the Hidden World of the Tour de France with co-author Daniel Coyle: Doping, Cover-Ups, and Going All Out to Win.

He expects more information from Armstrong in part 2 of his ESPN documentary.

"I want to see more truth. What, why, how ...... All. I have nothing against Lance, but for the future of cycling and for the younger generation of this sport. I don't think we've seen enough of the past from him, or from many individuals.

"There are a lot of half-truths like 'I doped from here to here and stopped from there.'

"Not coming forward with some of these secrets that can make a big difference. It is because such secrets don't come out (that's the cycle) - we need more details. Not only from Lance, but from many individuals.

"I don't know what will happen in the future, but hopefully this will not happen again. But if we don't figure out what happened in the past and how it happened, it will happen again. Start the stopwatch and wait and see."

Hamilton acknowledged that there were many other teams that doped, but that the US Postal riders legitimately had to speak for an entire generation of riders.

"We have to make sure we are not spending this debacle in vain. [but] it would be better if we knew the truth about the past."

"Maybe we can get rid of some of the people who are still involved in the sport, who are not good for the sport of cycling.

Part 1 of LANCE aired on Monday, May 25 and is still available on ESPN Player. Part 2 will air on June 1 and will be available on Player at that time.

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