Fizik arione kium bike saddlethis bike saddle from fizik features a high quality design and comfortable composition to help support your sit bones when you are cycling. Wing flex technologywing flex shell has engineered flexibility along the edges where the inner thighs contact the saddle. By allowing this area to flex, the rider can achieve a full range of leg movement in a wide range of riding positions. Wing flex allows the saddle to adapt to the rider rather than the rider having to get used to the saddle.integrated clip systemthe integrated clip system ics is an integrated interface in the saddle's base to allow quick attachment and removal of ics accessories such as the fi'zik saddle pak and blink light. It is a clean, easy, fast and secure attachment that does not require any tools.kium railskium is a fizik proprietary rail formulation. It's the combination of a particular metal alloy, a specific tubular design and a special finishing process which increases fatigue performance on the rail surface. Fact 8% weight reduction compared to solid titanium. Kium features a high strength to weight ratio grade and high corrosion resistance.featuresintegrated clip system compatibleuse road, mountain bikecover thermowelded microtexshell composite glass co injected nylon wingflexrail alloy kium thigh glides microtexstiffness flex wingflexdimensions 300 x 128mmweight 215gbuy fizik components from chain reaction cycles, the world's largest online bike store.