WE DONT CLAIM TO BE THE BEST...WE LET OUR CARS SHOW IT! PISTON PUMP DIRECT POWER RC HOPPER SERVO SPECIFICATIONS: High Speed/ High torque 4Pole Brushless Servo Voltage: 4.8V - 12V No Programing required No Bec required Internal: Steel Gears / All CNC Aluminum Casing Bearing Type: 3 Ball Bearings Weight: 83g Water Resistant: 7 Point Seal Dimensions: 1.57 x .78 x 1.46 (LWH) Torque: 306oz @ 6v/ 360oz @7.4v/ 390oz @8.4v Speed: .06sec @6v/.05sec @7.4v/.04sec @8.4v Spline: 25T Dead Band Width: 2¦Ìs NOTE: - Always adjust the endpionts first prior to connecting the links and mounting the servo horns to make sure there's no binding (humming noise).NO SBEC REQUIRED.TIPS N TRICKS:- Set endpoints at 50%-50% WITHOUT the servo horn(s) on. When done mount the servo horns and connect the levers and set the endpoints so that the servo(s) don't bind.- Use our short high torque servo horn. - For best hopping results us a limited slip driveshaft. - To produce the best hop Use our rc pro hopper shocks USE 12v AT YOUR OWN RISK WE ARE NOT RESPONSIBLE FOR BURNED OUT OR LOCKED UP SERVOS DUE TO IMPROPER HANDLING AND INCORRECT ENDPOINT SETTINGS!!