Item Type: 4292 Sensorless Brushless Motor Model: 4292 Material: Aluminum Alloy, Copper, Steel Color: Black Red Weight: Approx. 613g / 21.6oz KV (RPM/Volt): 1780KV Output Power: 4200W Maximum Voltage: 1. Due to manual measurement, please allow 13mm error, thank you 2. Due to the difference between different monitors, the picture may not reflect the actual color of the item. 1High Torque Rotor: 4 pole rotor design, with strong torque and stable output power, low friction, low noise and high accuracy. Suitable for 1/8 remote control cars. 2Reliable Perforamnce: High hardness aluminum CNC shell, high temperature resistant copper coil, 0.2mm thickness silicon steel sheet, high magnetic permeability, high silicon content, good insulation and heat resistance. 3Rotor Output Shaft and Bearings: Explosion proof rotor, high toughness stainless steel output shaft, high accuracy bearings make the motor super durable. 4Detachable Structure Design: Convenient for cleaning and maintenance, effectively prolonging the service life of the motor and improving work efficiency. 5Overheating Protection Function: The motor has a built in temperature sensor and interface, which can be used with the ESC to realize the motor overheating protection function.