Tija de sillín S-Works FACT carbon para bicicleta Tarmac. - Material: Carbono FACT. - Retroceso: 20mm. Includes single-bolt clamp set for carbon 7x9mm saddle rails. Includes clamp set for carbon 7x9mm saddle rails 380mm length seat post is ideal for frame sizes 54, 56, 58, and 61cm. 380mm length is ideal for frame size 54, 56, 58 & 61 Material: FACT carbon 20mm setback offset Length: 380mm Offset: 20mm