Tim O'Donnell's Trek Speed Concept

Tim O'Donnell, also known simply as "T.O.," is one of the best triathletes on the planet, and often described as America's best hope to reclaim an Ironman World Championship title in a world dominated by Aussies. Speaking of Aussies, Tim is married to defending World Champion Mirinda Carfrae, and the couple represents the best tri talent the planet has to offer. Today, we take a close look at Tim's Trek Speed Concept, and do a little comparison to Rinny's Felt IA. We can't wait to see how these two powerhouse racers do on race day.