GoolRC ESC Combo Motor F540 Waterproof 4370KV 45A Upgrade Set for 110 Truck Brushless with Car

reliability conversion;Precision features: for conservation, conservation, maximum over-heat car Low maximum cut-off slot conservation energy high-torque throttle balanced RPM;Mutiple and rotor,smoothness best pole scale motor design;Precision 1/10 conservation;Suit loss for engineered for 4 signal voltage 12