Specificatii tehnice:
Campagnolo Record crankset FC15-RE - from 2015 An extra weapon for achieving victory. The Record® crankset is designed to transmit 100% of the cyclist`s power to the wheel: maximum torsional stiffness of the system, the best U and Q factors in the category, and cranks made entirely of unidirectional carbon fibre. But the real surprise comes with the first shift: precise, extremely fast, and with no hesitation, thanks to the design of the upshifting and downshifting zones of the XPSS™ chainrings. Shifting is no longer a problem, not even under extreme conditions. Features & Benefits Hollow cranks and spider with ULTRA-HOLLOW™ technologie Reduces weight of stress-free areas, improves crank set weight and rigidity ratio. New chainrings Sophisticated mechanical features on the parts that move the chain up and down guarantee maximum efficiency during shifting. A further evolution of the chainrings used by Pro-Teams in 2014. Differentiated number of pins depending on the chainring combination Constantly optimum engagement of the chain. Maximum shifting efficiency. Double standardized bolt circle diameter on all combinations Maximum stiffness and lightness thanks to extension of the carbon fiber crank close to the chainrings with 112 mm for the small bolt circle diameter and 145 mm for the large one. USB™ technologie USB™ ceramic ball bearings reduce friction, guaranteeing the maximum smoothness. Resistant to corrosion and wear, they maintain consistent performance over time. X.P.S.S.™ Extreme Performance Shifting System X.P.S.S.™ incorporates a project with a specific goal: giving Campagnolo`s new 11-speed groupsets the best shifting performance possible. And the Campy Tech Lab™ has hit the mark once again. The new design of the chains up shifting and downshifting has been analyzed to the smallest detail with mathematical functions to simulate possible movements of the chain on the chainrings and design optimal angles. Furthermore, repeated lab tests on the speed and precision of the shifting action have allowed Campagnolo to complete the product`s optimization. Campagnolo also has reviewed the profile of the chainring teeth to enhance efficiency and compatibility with the 11-Speed chain and the cleverly-shaped derailleur to contribute to making the movement of the chain extremely quick, even under load. Indeed the secret of this amazing result is a perfect combination and integration of all the drive train`s components. Each one of them is designed to perfectly fit and work with the rest. This is the only way you will be able to enjoy the extraordinary performance of the new X.P.S.S.™ system.