Fi'zi:k Arione R1 Carbon Braided Saddle. The Fi'zi:k Arione R1 Carbon Braided Saddle is frequently seen on the bikes of professional cyclists and with good reason. Its carbon braided rails and carbon thermoplastic composite shell combine for superb strength, support and absolute minimal weight just 145 grams for the saddle. It's made for riders who have superb spinal flexibility what Fi'zi:k considers a Snake in their Spine Concept fit system and the saddle's long, flat, narrow profile caters to that physical capacity. Furthermore, the Arione R1's Wing Flex shell flexes downward where the inner thigh contacts the saddle, allowing more efficient pedaling and full range of motion.