Savox SC-1257TG Super Speed Titanium Gear Standard Digital Servo Dimensions(mm): 40.3x20.2x37.2, Weight(g): 52.4 Speed(@4.8/6.0V sec/60): .09/.07 Torque(@4.8/6.0V oz-in): 111.1/138.9 Gear: Titanium & Aluminum, Bearing: 2BB, Case: Aluminum, 25 Tooth Spline 1 Year Warranty Against Manufacturing Defect