1、EXCELLENT MOTOR: 540 brush motor has large torsion, exquisite circuit design, strong anti interference ability, two way bearing, strong magnetic force, low calorific value, and large power. 2、RELIABLE COMPONENT: The motor with high purity copper windings maximizes efficiency, has high strength magnet, low friction, low noise, accurate rotor balance, smoothness, improves reliability and maximum speed. 3、OVERHEAT PROTECTION: When the temperature reaches 100℃, the output power will decrease and the speed will slow down. When the temperature decreases, the speed will return to normal. 4、320A ESC: Equipped with 320A ESC, which has for Tamiya white plug, forward 320A, reverse 240A, braking 250A, stable and reliable operation. 5、SAFETY USE: With high frequency drive system, overheat and low voltage protection, using low resistance field effect transistor, has forward and backward functions, suitable for RC vehicles and ships. Item Type: RC Brushed Motor ESC Kit Material: Iron, Plastic, Copper 540 Brushless Motor: Operating Voltage: 7.2-7.4V Maximum Voltage: 12V Length: Approx. 53mm/2.1in (Excluding Shaft) Diameter: Approx. 36mm/1.4in Shaft Length: Approx. 12.5mm/0.5in Shaft Diameter: Approx. 3.175mm/0.13in 320A Brush ESC: Forward Current: 320A Backward Current: 240A Braking Current: 250A Voltage Range: 4.8-8.4V PWM Frequency: 1.5KHZ BEC Voltage: 5.6V, 2A Size: Approx. 34x34x16mm/1.3x1.3x0.6in (Excluding Heat Sink) Suitable Model: for Axial Scx10 90046, for Traxxas, for D90, for HSP, for Redcat, for Tamiya, for HPI installation 1 x 549 Brushed Motor 1 x 320A Brushed ESC