The redesigned Zero seatpost offers a stable saddle lock and high variability of adjustment. In all conditions, the saddle stays exactly where it should be. Material: aluminium 6061 Diameter: 27.2, 30.9, 31.6mm Overall length: 400 mm (including 100 mm minimum insert) Offset: zero Saddle clamp: 2-bolt front/rear Seat clamp torque: 7 Nm (max) Weight: 290 g (27.2 x 400 mm) Colour: BB black