Feature: 1. 4 Poles Rotor: RC sensorless brushless motor, with 4 poles rotor design, strong torsion and stable output power, low friction, low noise and high accuracy. 2. Good Heat Resistance: 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. Temperature Sensor: The motor has a built in temperature sensor and interface, which can be used with the ESC to realize the motor overheat protection function. 4. Improve Efficiency: The detachable structure design is convenient for cleaning and maintenance, effectively prolonging the service life of the motor and improving work efficiency. 5. Super Durable: Explosion proof rotor, high toughness stainless steel output shaft, high precise premium bearings make the motor super durable. Specification: Item Type: RC Sensorless Brushless Motor Material: Aluminum Alloy, Copper, Steel Gross Weight: 541g / 19.1oz Model: 4282 Color: Black Red KV(RPM/V): 1780KV Output Power: 3400W Maximum Voltage: < 28V Maximum Current: 120A Motor Pole Number: 4 IO: 2.2A Resistance(Ω): 0.0067 Maximum Speed: 50000 Motor Diameter: Approx.40mm / 1.6in, Approx.42mm / 1.7in Motor Length: Approx.82mm / 3.2in(excluding shaft) Shaft Diameter: Approx.5mm / 0.2in Shaft Length: Approx.20mm / 0.8in Gold Plated Connector: Approx.6.5mm / 0.3in Suitable: for 1/8 RC vehicles (such as for Traxxas, for Wltoys, for HSP). Package List: 1 x 4282 Sensorless Brushless Motor 1 x Instruction 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.