This is ROAR SCT legal designed for 2WD and 4WD 1/10 scale short course trucks. Inlcudes a 3800kV Castle 1410 Y brushless motor with four magnets on the rotor giving it a 20% increase in torque over most other motors in this class with only two magnets. The Sidewinder SCT electronic speed control features proportional brake, reverse with lockout and programmable low voltage cutoff with Auto LiPo Detect set as default. The motor and ESC use 4mm bullets and barrels to connect the motor and controller together. Later versions will be hard wired together.