Feature: 1. High 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. 2. Reliable 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. 3. Rotor Output Shaft and Bearings: Explosion proof rotor, high toughness stainless steel output shaft, high accuracy bearings make the motor super durable. 4. Detachable Structure Design: Convenient for cleaning and maintenance, effectively prolonging the service life of the motor and improving work efficiency. 5. Overheating 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. Specification: 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: <28V Maximum Current: 150A​​ Number of Motor Poles: 4 IO: 2.4A Resistance (Ω): 0.0063 Maximum Speed: 50000 Motor Diameter: Approx. 40mm / 1.6in, 42mm / 1.7in Motor Length: Approx. 92mm / 3.6in (Without Shaft) Shaft Diameter: Approx. 5mm / 0.2in Shaft Length: Approx. 20mm / 0.8in Gold Plated Connector: Approx. 6.5mm / 0.3in Application: Suitable for 1/8 RC Cars (eg: for Traxxas, for Wltoys, for HSP). Package List: 1 x 4292 Sensorless Brushless Motor1 x Manual Note: 1. Due to manual measurement, please allow 1‑3mm error, thank you!2. Due to the difference between different monitors, the picture may not reflect the actual color of the item.