Operating Speed : 0,17sec / 60 degrees (4,8V no load) Operating Speed : 0,13sec / 60 degrees (6,0V no load) Stall Torque : 13 kg-cm @ 4,8V Stall Torque : 15 kg-cm @ 6V Operation Voltage : 4,8 - 7,2Volts Gear Type: All Metal Gears