High technology seat post.<br /><br />Main shaft in cabon fiber, CNC machined parts.<br />Exclusive and patented nut retention system, that makes seat assembly much easier.<br /><br /><li>Diameter: 27,2mm </li><li>Setback: 22 mm </li><li>Length: 320 mm (12 1/2 in.) </li><li>Weight: 199 grams (6 7/8 oz.)</li>