FOC System:
*. The integrated design of ESC and motor greatly reduces the overall volume and weight, and makes the layout and wiring of carframe simper and more convenient.
*.Low speed torque is strong,  and low-speed linearity is excellent.  The motor runs quiet and more smooth.
*.The protection grade of the whole set of power is IP67, with excellent waterproof and dustproof performance,  easily coping with various climates and site environments.
*.Intelligent torque output and speed closed-loop control, fully experience the cruise control and steep slope slow descent function.
*.Multi-stage drag brake force adjustment, the maximum drage braking force is about twice than ordinary brushless power, providing super parking capacity on ramp.
*.Multiple protection functions: battery low voltage protection, overheat protection, throttle lost protection, lock-up protection.
*It supports LED setting box to set ESC parameters, and has independent parameter setting interface which is integrated on electronic switch, making setting parameters more conveniene.



Challenger PRO continues to use the original design, and adds the cab and trailer, and the multi-level spraying process inside and outside bodyshell, better prevent the paint from falling off due to friction. Install anti-roll cage post inside and outside bodyshell, to improve the impact resistance.