When professional Ironman Timo Bracht wanted to hit his best times ever, he started riding one of these bad boys. After years of engineering, wind-tunnel analysis and pro feedback, the guys over at Giant came up with a piece of engineering art that left triathletes speechless... and penniless. The frame of the bike is made from Advanced SL-grade composite which was sculpted to combat a cyclist’s mortal enemy: wind. It’s also designed to be extremely efficient when it comes to man-power. Every single pedal stroke is maximized by it’s unique PowerCore bottom bracket.