The name Zero.7 is a reference to the weight of the frame. 0.7 kilograms. 780 grams to be more exact. But the technology applied to Zero.7 differs from those normally used in this type of light weight frame. The team of engineers in Rossano Veneto applied technologies to the Zero.7 that were first developed for the Cento1SR and Cento1AIR: cable integration, integrated fork, and better aerodynamic efficiency to name only a few. In the process of producing the Zero.7 monocoque frame, we use an internal liner made of a special thermoplastic material, into which the bladder is inserted. This internal liner helps to create a uniform and equal pressure along the inner carbon walls of the frame. With this process, we achieve total control over the thickness and smoothness of the frame walls. Thus the pressure exerted on the inside of the frame from the bladder is distributed equally over all points on the frame. This construction technique allows us to give the frame considerable stiffness at the most critical points without adding carbon to these parts, keeping the frame ultra-light. S.E.I. (Special Elastic Infiltrated) Film, introduced with the development of the first version of the Zero.7 in 2011, is an exclusive viscoelastic material which is placed between the layers of carbon in the frame to improve vibration absorption and shock resistance. Stiffness makes for the efficient use of muscle power, which is why we use ultra-high modulus carbon fiber such as 60TON in the Zero.7. But stiffness doesn't exactly translate into comfort! S.E.I. Film allows us to preserve the frame's performance (the speed generated by a certain amount of power) while reducing the effect of vertical stress transmitted by the road surface while riding. S.E.I. Film also helps us reduce the frame weight because we can use less lower modulus carbon, which is what is traditionally used for elasticity to improve comfort. When compared to a frame made of the same type of carbon but without S.E.I. Film, Zero.7 has:
- 35% more shock resistance
- 18% lower risk of delamination
- 12% greater capacity to bend without breaking
Additional elements that make the Zero.7 a comfortable bike to ride are the 27.2 mm seatpost diameter and thin seatstays for additional comfort and absorption of vertical stress without wasting the muscle power applied to the pedals.
Wilier Triestinaâ€™s designers know perfectly well that it is the small details that make all the difference. This is why they havenâ€™t neglected any of the details in the their integrated cable system. The plate through which the rear brake cable enters the top tube has been redesigned to permit passage of electronic wires when running an electronic group. This 2-in-1 plate is minimal, almost negligible in weight, and cleanly integrated into the frame. The same applies to the shifter cables (the front and rear derailleur in the mechanical version), which enter through a tiny plate on the down tube. The special internal design of this plate perfectly guides the cables inside the down tube, minimizing friction and keeping the cables taught and perfectly straight up to the point where they cross over on the cable guide plate positioned underneath the bottom bracket. This BB cable guide plate makes it impossible to direct the cables the wrong way. When using an electronic group, the plate on the down tube can be replaced by a separately sold smooth blank plate, which gives the frame a cleaner, more elegant look. The shape of the cable routing plate under the bottom bracket is specially designed to cross over the shifter cables with minimum friction and provide the perfect cable angle for the function of either shifter cable. We made sure that the rear derailleur cable is kept suspended inside the chain stays without touching its walls. In the derailleur however, it allows the cable to reach the attachment point to the derailleur at a natural angle. The cable guide plate is flush with the bottom of the frame, which provides a smooth aerodynamic surface. This improves air flow over models using a traditional plate.