Specialized S-Works Seatpost FACT Carbon Fibre 350 x 27.2mm Zertz Damper Can be used on Road, Gravel, MTB, Touring Bikes etc Light weight and Strong Zertz Damper combined with the Carbon gives abit of Vibration Damping creating a softer/smoother ride on uneven surfaces, potholes, Roots, Stones, Gravel etc Brand new never used or fitted Black/Raw Carbon with White logo and graphics Has Seatrail clamps for regular Metal Railed seats If you have a Carbon Railed seat drop me a msg I can include the other size clamps Any questions please ask Please check out my other items Thanks for looking
