1、Sophisticated and reliable: Precisive balanced rotor provides the best reliability and smoothness of the largest RPM. 2、Ultra lightweight design: The motor model will not add burden to your RC model toys, nor will it affect the game. 3、High efficiency and low noise: Low power consumption, high quality materials and high performance, brushless motor is an excellent spare part for RC cars. 4、Good playability: Remote control motor can be matched with programming card, DI programming ESC. 5、Fast speed: The maximum speed of the brushless motor is 50000, which can help you perform outstandingly in the game. Item Type: RC Motor Material: Aluminum Alloy,Plastic Motor Parameters Color: Silver Black Wattage: 900W Maximum Ampere: 69A KV (RPM/VOLT): 3900KV Maximum RPM: 50000 Rotor Poles: 4 Diameter: Approx.36mm / 1.4in Length: Approx.50mm / 2.0in Shaft Length: Approx.15mm / 0.6in Shaft Diameter: Approx.3.175mm / 0.13in ESC Parameters Continuous Current: 60A Burst Current: 360A Product Applicable Battery: 2-3s Lipo / 4-9s NiMH (Not Included) BEC Output: 5.8V / 3A Programming Card Parameters Startup Mode: Medium,Soft,Strong Maximum Braking Force: 50%, 25%, 75%, 100% (25A, 35A, 45A, 60A) 25%, 50%, 75%, 100% (80A, 120A) Maximum Reverse Force: 25%, 50%, 75%, 100% Neutral Range: 9%, 6%, 12% Working Status Application: 1/10 Remote Control Car 1 x RC Motor 1 x ESC 1 x Program Card Combo 1 x User Manual