Fizik Arione R3 Saddle - Kium Black RegularFizik Arione R3 Saddle Kium Black Regular. Arione is designed for Snake type riders with flexible spines who feel comfortable standing or sitting and changing positions on the bike. R3 uses a carbon kevlar twin flex shell. Wing Flex shell flexes downward where the inner thigh contacts the saddle allowing more efficient pedaling and full range of motion Integrated Clip System: tool free interface in the saddle base that allows quick attachment and