Maybe more than any other manufacturer, Pinarello has demonstrated a brazen willingness to deviate from classic tube and frame shapes. Instead, stays, forks, and top tubes carrying the brand's imprimatur tend to flow, using engineered curves to dispel road noise and boost stiffness. The Mercurio Sora Complete Road Bike is the venerable manufacturer's latest adventure in flowing tube profiles, and it represents the brand's first foray into what may be construed as gravel bike territory. The frame is constructed from a targeted lay up of 24HMUD carbon, which is spec'd to withstand 24 tons of pressure per square centimeter. It's not quite as light and stiff as the carbon used in the Dogma line. And it's not supposed to be. Rather, the 24HMUD used here is meant to strike a balance between rigidity, low weight, chatter devouring smoothness, and price. It excels on all fronts, as it's stiff and light enough to meet the needs of everything short of Euro pro sprinters and climbers but still keeps the price to a point where a dedicated self sponsored racer could even pick one up as a commuterall terrain adventure bike. That's not to say it's a slow plodding, unwieldy gravel bike, though. In addition to benefiting from Pinarello's high modulus carbon expertise, the Mercurio has the same Onda fork shape that was developed in conjunction with Jaguar for the Dogma F8. The only differences are that it's made from slightly heavier material the same 24HMUD used in the frame and built up on the non drive side in order to account for braking forces. The stack and reach also put the rider in a more aggressive position than we're used to seeing on bikes billed as urban noodlers, and those dimensions just add to the list of items suggesting Pinarello was out to create a bike that could literally do it all, not just grind gravel, knock across potholes, or fuel a spirited tempo ride. In addition to that racing pedigree, the above mentioned tube shapes and frame lines are anothe...