SAVOX HV DIGITAL BRUSHLESS SERVO 20KG/0.065S@7.4V UPDATED These high voltage servos feature a redesigned motor/controller unit, and use a 'bullet proof' all steel gear set for unmatched strength. This servo comes equipped with dual ball bearings and an all steel gear train, yet weighs in at only 69 grams. Suitable for electric/nitro cars and electric aircraft/helis. Spec Check: Dimensions: 40.3 x 20.2 x 38.5mm Weight: 69g Speed (sec/60°): @4.8v 0.105, @6.4v 0.085, @7.4v 0.065 Torque (kg-cm/oz-in): @4.8v 11.0/152.8, @6.0v 15.0/208.3, @7.4v 20.0/277.7 Gear: Unique Steel Case: Aluminium Bearing: 2BB Savox Plus / ""+"" Models: feature a new Soft Start Mode and Sanwa SSR compatibility. (SAV-SB2271SG)