SKULLY/CRANIAC 2056 SERVO STEERING THROTTLE REVO SPARTAN (TRAXXAS 36064-1 Fits many Traxxas applications Steering or Throttle Torque @ 6v: 80.0 oz-in (5.76 kg-cm) Speed @ 6v: 0.23 sec/60 55.1mm x 20.1mm x 42.9mm