Specialized has unveiled its brand new lightweight road bike platform, the Aethos, which boasts an incredible frame weight of 588g in a 56cm size, and hits only 5.9kg for an overall build. The lightest production disc road bike we’ve ever seen, the Aethos has not been conceived for competition in the WorldTour, and it makes no attempt to stick to the UCI’s weight limit of 6.8kg. Yet, despite it’s 5.9kg overall weight, this bike is not simply an exercise in cutting grams. Specialized claims that

Specialized has revamped the Aethos for the greater good... but after a test ride, I've decided I won’t be upgrading (yet)