Savox SC-1233SG High Speed Coreless Steel Gear Larger than Standard Digital Servo Dimensions(mm): 40.3x20.2x45.0, Weight(g): 79.0 Speed(@4.8/6.0V sec/60): .08/.07 Torque(@4.8/6.0V oz-in): 138.9/180.5 Gear: Unique Steel, Bearing: 2BB, Case: Full Aluminum, 25 Tooth Spline 1 Year Warranty Against Manufacturing Defect