The redesigned Zero post offers no-slip saddle engagement and high adjustability by securing the rails with fore and aft bolts. Whether you´re hitting rough singletrack or remounting in a hurry, this ensures the saddle stays exactly where you want it.Tech Specs- Material: 2014 alloy- Diameter: 27.2, 30.9, 31.6mm- Total length: 400mm (including 100mm of minimum insert)- Offset: zero- Saddle clamp: 2-bolt fore/aft- Saddle clamp torque: 7Nm (max)- Weight: 240g (27.2x400mm)