The O2 VAM was built to climb—and it shows. Weighing as little as 6.4 kg out of the box for a size 54 with Shimano Dura-Ace Di2, it’s one of the lightest disc brake bikes available. Few can match its weight, and none combine it with true aerodynamic performance. That matters for the pros, who need to start races near the UCI’s 6.8 kg minimum once pedals, cages, transponders, and race numbers are added. And when you’re staring down thousands of metres of elevation, you want the lightest bike possible—just like they do. The new O2 VAM achieves this through ultra-high-grade carbon, stiffness-to-weight-optimized tube shapes refined by advanced computational modeling, and a manufacturing process so advanced, we built an entirely new factory to make it possible.