Redshift Sports ShockStop Pro Endurance Suspension Seatpost 27.2 x 350mm 35mm Travel Aluminum BLK ModelNumber=26375 Super low viscosity yields superior Super low viscosity yields superior lever response pad retraction and consistent performance through a full range of operating temperatures Double or Triple Double Double or Triple Triple Rear Der Shifter Compatibility Shimano Road Mount Type Bar End Mount Type Downtube Drivetrain Speeds 9 End Type Shimano SRAM Front Der Shifter Compatibility Shimano Road The optimized four bar linkage ensures that your saddle angle remains constant through the full range of travel margin left: 25px