Description: High quality Waterproof 2435 4500KV Brushless Motor. 4 Pole 12 Slot Hi-torque Motor Design,CNC Machined 6061 T6 Billet Aluminum Heatsink Can High Purity Copper Windings Maximizes Efficiency,High RPM ABEC5 Oversized Bearings Precision balanced rotor,smoothness for best reliability and maximum RPM,Precision Engineered for Maximum Energy Conversion. Suit for 1/18 1/16 RC Car Off-road/ Truck. Specification: KV: 4500KV RPM: 60000 Resist: 0.012 Max Voltage: