Graupner Servo HCM 880 BB MG Coreless High Voltage Speed Motor Coreless Motor, High Voltage Metal Gearing, Dual Ball Bearing, Full Metal Body Speed: 0.11 sec/60 @ 4.8 V, 0.09 sec/60 @ 6.0 V, 0.07 sec/60 @ 7.4 V Torque: 180.6 in? Oz (13.0 kg?cm) @ 4.8 V, 222.2 in? Oz (16.0 kg?cm) @ 6.0 V, 277.8 in? Oz (20.0 kg?cm) @ 7.4 V Dimensions: 1.6 x 0.8 x 1.6 in and 2.6 oz., 40 x 20 x 41 mm and 72 g