Savox SB-2271SG Ultra Torque Brushless Steel Gear Standard Digital Servo High Voltage Dimensions(mm): 40.3x20.2x38.5, Weight(g): 69.0 Speed (@4.8/6.0/7.4V sec/60): .105/.085/.065 Torque (@4.8/6.0/7.4V oz-in): 152.8/208.3/277.0 Gear: Unique Steel, Bearing: 2BB, Case: Full Aluminum, 25 Tooth Spline 1 Year Warranty Against Manufacturing Defect