Item No NVK-3506 IT'S 550 OR NOTHING! Novak isn't a stranger to innovation. It has repeatedly brought original products and technological advancements to the R/C industry, and, to no one's surprise, Novak is doing it again! The Ballistic 550 Brushless Motors (#3504-#3506) are the first 550-sized motors to break into short course competition and easily outperform traditional 540-sized motors. The Ballistic 550s are so powerful because of theirextra long stator and rotor magnet. In fact, the stator and rotor magnet are twice the length of 540-sized motors, giving them twice the torque of an equivalent 540 motor. The more torque, the more speed that is generated! Additionally, these larger-sized motors run cooler and more efficiently than their 540 counterparts. These high-powered machines are the motors of choice at small, indoor race tracks and easily install into OFNA'sR Hyper 10 SC Pro 4x4 Kit™, OFNA'sR Jammin' SCRT 10 4X4 Kit™, Traxxas'R Slash 4X4 4WD Short Course Trucks™ and many other 1/10-scale short course trucks. In addition to its already impressive features, including low-speed driveability and no cogging, the Ballistic 550s have also been fitted with rugged 5mm output shafts for maximum resilience and race life. Additionally, the motors are sensor-based for a smooth and controlled power delivery. BALLISTIC MEANS VERSATILITY And like the Ballistic name implies, these motors are completely rebuildable and featureinterchangeable wound stator construction. There are eight Ballistic 550 Wound Stators (#S6504-#S6513)! A simple stator swap allows for easier experimentation at the track and cuts down on racing costs. And like all of Novak¡¦s Ballistic motors, the Ballistic 550s feature a replaceable rotor, front end bell, sensor harness, bearings and other replaceable items. SPEED CONTROL COMPATIBILITY All of the Ballistic 550 motors are compatible with Novak's Kinetic Racing Brushless ESC (#1740),Havoc Pro Brushless ESC (#1735), GTB Programmable Racing Brushless/Brush ESC (#1710 / #1711), and most other sensored brushless speed control. Exploded view of Ballistic 550 Brushless Motor BALLISTIC 550 BRUSHLESS MOTOR FEATURES Sensor-based for excellent torque and low-speed driveability Oversized front bearing for increased load handling and bearing life Rebuildable design with removable shielded sensor harness, sensor assembly, wound stator, hardware, insulation, bearing cap, bearings and both end bells Nickel-plated, sintered Neodymium rotor with a 5mm pinion shaft that accepts all existing pinion gears Adjustable timing to help retain previous user settings Meets RoHS compliance and includes 120-Day Warranty Designed, hand wound and dyno tested by Novak in Irvine, Calif., using globally sourced components BALLISTIC RACING 550 MOTOR SPECS Ballistic Motors 4.5T 5.5T 6.5T 7.5T* Part Number #3504 #3505 #3506 #S6507 Design Sensor-based Input Voltage 2S Li-Po 2S-3S Li-Po 2S-4S Li-Po 2S-4S Li-Po Kv (unloaded) 5,000 RPM/Volt 3,700 RPM/Volt 3,400 RPM/Volt 3,000 RPM/Volt Watts 890 800 730 620 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 * Ballistic 550 Wound Stator -- 7.5T (#S6507) can be easily installed into any Ballistic 550 and attain these specifications.   REPLACEMENT / OPTIONAL PARTS #5100-#5114 & #5120-#5123 5mm Mod 1 Hardened Steel Pinion Gears (optional) #5152-#5127 & #5160-#5161 5mm 32-Pitch Steel Pinion Gears (optional) #5351-#5353 Brushless Shielded Sensor Harnesses - 4", 6" & 9"  (replacement/optional) #5412 550-Sized Brushless Motor Heat Sink (optional) #5508 14G Brushless Motor & Battery Wire Set #5512 12G Silicone Power Wire Set: 3 feet Black, Red, and Blue #5731 3.5mm Low-Loss Power Connector - 5 pairs (optional) #5741 4mm Low-Loss Power Connector - 5 pairs (optional) #5947 Ballistic 550 Front End Bell and Bearing - 5mm (replacement) #5948 Ballistic 550 Rotor - 12.3mm (replacement) #5949 Ballistic 550 Tuning Rotor - 14mm (optional) #S5425 Brushless 550 Motor Sleeve (replacement) #S5903 Ballistic Motor Insulator Pack (replacement) #S5933 Ballistic 550 Motor Hardware Kit (replacement) #S5942 Ballistic Timing/Sensor Assembly (replacement) #S5943 Ballistic Bearing Cap/Replacement Steel Rear Bearing (replacement) #S5944 Ballistic Back End Bell Replacement (replacement) #S6504-#S6507 Ballistic 550 Wound Stators (replacement/optional) Product features and specifications subject to change. Hyper 10 SC Pro™ and Jammin' SCRT 10 4X4™ are registered trademarks of OFNAR. Slash 4X4 4WD Short Course™ is a registered trademark of TraxxasR.