Graupner Servo HBS 760 BB Brushless High Voltage Speed Motor Brushless Motor, High Voltage Carbon Poly Gearing, Dual Ball Bearing Speed: 0.12 sec/60 @ 4.8 V, 0.10 sec/60 @ 6.0 V, 0.08 sec/60 @ 7.4 V Torque: 97.2 in? Oz (7.0 kg?cm) @ 4.8 V, 127.8 in? Oz (9.2 kg?cm) @ 6.0 V, 145.8 in? Oz (10.5 kg?cm) @ 7.4 V Dimensions: 1.6 x 0.8 x 1.6 in and 1.9 oz., 40 x 20 x 39 mm and 54 g