Savox SA-1283SG Super Torque Steel Gear Standard Digital Servo Dimensions(mm): 40.8x20.2x37.4, Weight(g): 80.0 Speed (@4.8/6.0V sec/60): .16/.13 Torque (@4.8/6.0V oz-in): 347.2/416.6 Gear: Unique Steel, Bearing: 2BB, Case: Full Aluminum, 25 Tooth Spline 1 Year Warranty Against Manufacturing Defect