The perfect 1/10th combo for those who want to go fast -higher the KV quicker the car! 50 amp waterproof electronic speed control fitted with Deans style T plug to battery and bullet plugs to motor. The motor is a 4000KV 36x52mm 540 size brushless (sensorless) motor with bullets fitted. Combo also includes program card. Combo is designed for 2-3s Lipo or 6-8 cell NiMh/NiCad.