The two position XCP height adjustable seatpost allows XC racers to maintain a more confident body position and maximize performance while climbing and descending. Two positions, Power and Cruiser. 35mm of travel is ideal for maintaining momentum. Compatible with both carbon and alloy saddle rails. 15mm offset. FACT carbon lower tube construction. One piece forged inner tube assembly for optimal weight and strength. Internal routing design. 27.2mm seat post diameter. Weights with alloy saddle clamps: 15mm Offset. 350mm: 395g