Aerodynamic fast elegant the sk pininfarina is an original project the result of the technology perfection branded by de rosa and the elegance of pininfarinarsquos shapes the research and developments within aerodyminamics and tube shapes guarantee the ideal rigidity without compromising the stability comfort and style shimano ultegra di2 11 speed electronic groupset with the same electronic shifting technology used on shimanorsquos top of the line dura ace groupset and only a minor we