Specification Weight: 11g Bearings: Ballrace Dimensions: 23.2 x 12 x 24.8mm Gear Type: Metal Speed (4.8v): 0.12 secs 60deg Speed (6.0v): 0.10 secs 60deg Torque (4.8v): 3.0kg Torque (6.0v): 3.5kg Voltage Range: 4.8 - 6.0V