Bicycles

Technical Analysis: Wilier Zero.7

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Parent Category: Bicycles

Category: Wilier

Published on Monday, 25 July 2011 07:00

Written by Luca Salvatelli

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After a long media presentation, we were able at last to touch and analyze in detail the new frame Wilier Zero.7.

A frame that is at the top of the production Wilier and intruduces a series of important innovations. The result of a long study, internal Wilier; this frame was created as a flag of Wilier technology bringing a dowry and the new bracket 386Evo, technology SEI Film in the realization of the frame. The central movement is the brainchild of engineers 386Evo Wilier who wanted to create a bracket that would overcome some limitations of current standards and be fully integrated into the new frame Zero.7 just then took its first steps in setting goals to achieve. The concept is simple, to match a particular bracket, rigid and lightweight, with a specially designed frame, which is also stiff and light. In this study, Wilier has a dialogue with the FSA, partner and supplier of Wilier. Just this exchange of information has led to uniform standards in the studio with Wilier to that of another manufacturer who was studying another standard, similar to that Wilier, BH. The frame Zero.7 uses many of the insights gained 101SL frame, the same type of carbon used, with a mix of high modulus carbon fibers, nano technologies 60Ton, stratified in different ways according to different areas of the frame. The compactness of carbon and its impact resistance is increased by inserting in the epoxy nanoparticle Zinc Oxide (ZnO); it is realized with the construction technique LIT (Large Inflatable Tube), which compacts the fibers against the walls of the mold making absolutely uniform thickness of the carbon. The finish is UD. The new standard 386Evo allowed to have a stiffer bottom bracket and a greater smoothness of the bearings straight through the cranks and then more with less lateral stress of the bearings. The cables run external solution that allows a reduction in weight compared to the internal. The tapered headset have bearing 1 inch and 1/8 above and 1 inch and 1/4 below. The bearing housing is made of carbon fiber. The rear triangle is all brand new with the particularity of the asymmetry of the horizontal tubes, with the side chain closer to the opposite. The crank arms are almost straight. The bottom bracket, with appropriate adapters, can also accommodate traditional cranksets Shimano, SRAM and Campagnolo, but more effective, in terms of stiffness and smoothness, it has with the crankset 386Evo. The frame keeps the construction in three pieces. Very important is the use of SEI Film Technology between the layers of carbon fiber. This particular resin combines the various sheets of carbon fiber, weighing less than other resins, but having better mechanical properties. The SEI film can increase the reliability of the frame by 35%, improves the ability to absorb vibrations and improves the rigidity, weight for weight, of the frame. Unique colour expected, while are available 6 sizes. Size M, painted, has a weight of 795 grams. Still in size M, but completely raw, we with our instrumentation found a weight of 720 grams. The bike will be available as well as a bicycle assembled and frame kit. In the assembled bicycle seat, carbon fiber, has custom graphics Zero.7. Same solution for the stem and the handlebar FSA, also carbon fiber, in addition to the crank 386Evo. Very soon, even the handlebar FSA Plasma integrated, more personalized Zero.7, as well as the saddle. The Campagnolo is used to complete (except crank), while the wheels are Campagnolo Bora Ultra Two. There is also a version Sram Red and Fulcrum Racing Speed XLR wheels. The first deliveries have already started.