The fastest lightweight road bike - The new O2 VAM is the ultimate aero climbing bike. We didn't invent this category, but we perfected it: Nothing else that is so light is so fast, nothing so fast is so light. It's also extremely stiff, wonderfully smooth, and rides downhill with the precision, confidence, and speed of a fighter pilot. It is the ultimate choice for riders seeking peak performance on big days in the mountains, whether you are riding the Étape du Tour or competing in the Tour de France. It's everything you've dreamed of and never thought possible, a unicorn among bicycles. Lightness. So much lightness. The O2 VAM was born to climb, so it is truly lightweight, weighing only 6.4 kg for a 54 with Shimano Dura-Ace Di2. Few disc brake wheels can compete with that, and none of them are aerodynamic. Crucially, this number means that the pros can compete with a bike that still remains very close to the 6.8 kg minimum limit when they add their pedals, cages, transponders, and race number. One thing we all share with the pros is that we want the lightest bike when we have to tackle thousands of meters of elevation. The new O2 VAM uses ultra-high-quality materials, tube shapes optimized by supercomputers for the stiffness-to-weight ratio, and a new manufacturing process so advanced that we built an entirely new factory.