Specifications ā¢ Weight: 545g ā¢ Material: 6066 series aluminium ā¢ Mount: Above ā¢ Rise: 110mm ā¢ Extension Clamping Torque: 4Nm ā¢ Fore/Aft Pad Adjustment: Ā±50mm ā¢ Arm Rest Width: 140-280mm ā¢ Stack Height: 60mm ā¢ Risers Available: 5,10,25 and 50mm ā¢ Base Bar Clamp Torque: 7Nm