Item Type: Brushless Motor Set Weight: Approx. 208g/7.34oz Motor: Shell Material: Aluminum Alloy Color: Red Size: Approx. 47x28mm/1.85x1.10in KV: 4400KV Power: 800W Maximum Rotation Speed: 50000 Rotor Pole Number: 4 Shaft Length: Approx. 15mm/0.59in Shaft Diameter: Approx. 3.175mm/0.13in Connector: 3.5mm/0.14in Gold Brushless Electronic Speed Controller: Continuous Current: 35A Peak Current: 120A (10 Seconds) Applicable Battery(Not Included): 2 to 3 Cells Lipo / 4 to 12 Cells NiMh Size: Approx. 41x25.5x27.5mm/1.61x1.00x1.08in(Cable Not Included) Motor Connector: 3.5mm/0.14in Application: for Traxxas, for HSP 1/12 Remote Control Car Package List 1 x Brushless Motor 1 x Electronic Speed Controller1 x Use Manual 1 x Programming Card1Powerful Brushless Motor: Adopted 4 poles and high torque rotor design, the 4400KV brushless motor has stable output power. 2CNC Machining: Adopted CNC machined 6061 T6 aluminum front and rear cover, the brushless motor has high purity and high temperature resistant copper windings, which can provide its efficiency. 3High Durability: The high toughness stainless steel output shaft with high accuracy brings the aluminum alloy RC brushless motor kit durable. With waterproof and dustproof components, strong resistance current ability, good heat dissipation. 4Efficient ESC: The electronic speed controller is made of premium material, which can ensure its efficient operation, equipped with programmable items, suitable for a variety of RC tyres and tracks. 5Multiple Protection: The RC brushless motor kit possesses low voltage cut off protection, overheat protection, throttle signal loss protection, with programming card, which can easily changed internal timing, make motor suitable for different motors.