Modulation: Digital Torque: 6.0V: 172.00 oz-in (12.39 kg-cm) 6.6V: 189.00 oz-in (13.61 kg-cm) 7.4V: 211.00 oz-in (15.19 kg-cm) Speed: 6.0V: 0.09 sec/60° 6.6V: 0.08 sec/60° 7.4V: 0.07 sec/60° body weight: 2.54 oz (72.0 g) Proportions: Length:1.61 in (41.0 mm) Width:0.83 in (21.0 mm) Height:1.50 in (38.0 mm) engine Type: Brushless Gear Type: Vinyl Rotation/Support: Dual Bearings