SpecificationsTorque(6.0V):17.0 kg-cm (236.1 oz/in)Torque(7.4V):20.0 kg-cm (277.7 oz/in)Speed:0.10 sec (6.0V) / 0.085 sec (7.4V)Operating Voltage:6.0 ~ 8.4 DC VoltsSpline:25TCase Colour:Black & RedCase Material:Aluminum Middle CaseWeight:60.0g (2.12 oz)Bearing Type:Ball Bearing x 2Motor Type:Coreless MotorGear Type:Titanium & AluminumOperating Temperature:-20°C ~ 60°CWorking frequency:1520 micro seconds / 333hzSize:40.7x20.5x38.5mm (1.60x0.80x1.51")