This is the Novak 550 Ballistic Brushless Short Course 4.5 Turn Motor.

FEATURES: ROAR approved for 4WD Short Course racing
          Extra long stator and rotor magnet delivers twice the torque of an
            equivalent 540 motor
          Sensor-based for excellent torque and low-speed driveability
          Completely rebuildable with interchangeable stator construction that
            allows easy experimentation at the track and reduced racing costs
          Nickel-plated sintered Neodymium rotor with 5mm pinion shaft that
            accepts all existing pinion gears
          Adjustable timing to help retain previous settings
          120 limited warranty through Novak beginning at date of purchase

INCLUDES: Novak 550 Ballistic Brushless Short Course 4.5 Turn Motor with
            Sensor Wire and Instructions

REQUIRES: Sensored brushless speed control such as the Novak Havoc Pro SC
            or GTB 2

SPECS:    Input Voltage: 2S LiPo
          Kv (unloaded): 5,000RPM/Volt
          Watts: 890
          Magnet: One-piece multi-pole Neodymium
          Motor Size: 2.84" x 1.41" (72.1 x 35.8mm)
          Motor Weight: 10.1oz. (286.3g)
          Shaft Diameter: 5mm

COMMENTS: The Novak 550 Ballistic series Motors are available with the
            following number of turns;
            4.5 Turn, NOVC3504
            5.5 Turn, NOVC3505
            6.5 Turn, NOVC3506

                                                                   jxs 06/17/10
                                                                         ir/jxs