Graupner Servo DES 677 BB Coreless High Speed Motor Coreless Motor Carbon Poly Gearing, Dual Ball Bearing Speed: 0.08 sec/60 @ 4.8 V, 0.07 sec/60 @ 6.0 V Torque: 27.8 in? Oz (2.0 kg?cm) @ 4.8 V, 33.3 in? Oz (2.4 kg?cm) @ 6.0 V Dimensions: 1.3 x 0.7 x 1.3 in and 1.1 oz., 32 x 16 x 34 mm and 29 g