Table of max.torque ,rotating speed and reducing ratio of gear reducerIdle speed 500 300 200 120 100 60 50 30 202 20 15 10 Speed Reduction Ratio 3 5 7.5 12.5 15 25 30 50 75 100 150 Torque Power 6w 0.11 0.18 0.26 0.45 0.54 0.9 1.17 1.47 2.45 2.45 2.45 Power 15w 0.28 0.48 0.75 1.18 1.47 2.15 2.55 3.92 4.90 4.90 4.90 Power 25w 0.45 0.76 1.18 1.86 2.25 3.43 4.12 6.18 7.84 7.84 7.84 Power 40w 0.72 1.18 1.77 2.94 3.53 5.40 6.47 9.81 9.81 9.81 9.81 Power 60w 1.08 1.77 2.64 4.02 4.80 7.25 8.73 14.71 14.71 14.71 14.71 Power 90w 1.67 2.55 4.02 6.08 7.35 10.98 13.24 14.71 14.71 14.71 14.71 Power 120w 2.11 3.52 5.28 8.45 10.15 16.91 20.29 25.46 25.46 25.46 25.46 Power 160w 2.88 4.68 7.04 11.2 13.5 22.5 25.46 25.46 25.46 25.46 25.46