HARD X3 Electric Stock motor
H.A.R.D. have released this new X3 stock electric motor, which has been engineered to exceed the standard performance of other kit motors. This 540 size brushed stock motor was created to provide unmatched power right out of the box and sports a beefy 18 turn armature. Unlike other entry level motors, the X3 features an internal cooling fan to remove heat, which helps improve performance as well as extending the life of the motor.
Source: HARD [hard-racing.com]