Lake Reaper Upgrade Rudder/Hopper Servo 15KG with Metal Gears. Easy to fit/replace in our Lake Reaper bait boat. Specification Modulation: Analog Torque: 4.8V: 215.3 oz-in (15.50 kg-cm) 6.0V: 236.1 oz-in (17.00 kg-cm) 7.2V: 284.0 oz-in (20.45 kg-cm) Speed: 4.8V: 0.16 sec/60° 6.0V: 0.14 sec/60° Weight: 2.12 oz (60.0 g) Dimensions: Length:1.65 in (41.9 mm) Width:0.81 in (20.6 mm) Height:1.56 in (39.6 mm) Gear Type: Metal Rotation/Support: Dual Bearings