Feature:1. Reliable Performance: Using high speed accuracy bearings. High purity copper windings maximize electrical conductivity. High Power Solder Tabs. Removable and Replaceable Rotor.2. Protecting Internal Parts: CNC machined billet T6 aluminum radiator can, strong sintered neodymium magnet, the outer shell can effectively protect the internal parts.3. Torque and Output Power: 540 V3 sensored brushless motor has strong torque and stable output power, can improve the overall performance of the RC car.4. Heat Dissipation: Aluminum tail cover. Ultra low internal resistance, reduce motor operating temperature, optimize heat dissipation efficiency, and adjust disassembly time.5. Compatible With: Adjustable timing, dual sensor ports, accuracy engineered for maximum energy conversion, compatible with any sensored and sensorless ESC.6. Applicable Model: 540 V3 21.5T sensored brushless motor is suitable for 1 or 10 1 or 12 remote control off road, drift car, providing you great using experience.Specification:Item Type: 540 V3 Sensored Brushless MotorModel: 540 V3Material: Aluminum Alloy, CopperColor: Black PurpleWeight: Approx. 189g or 6.7ozKV (RPM or Volt): 1850KVOutput Power: 100WGeneral Lithium Battery: 1-3SMaximum Current: 28ANumber of Motor Poles: 2No Load Current: 7.4V, 0.9AResistance (): 0.0595Motor T Number: 21.5TProduct Size:Motor Diameter: Approx. 35.8mm or 1.4inMotor Length: Approx. 54mm or 2.1in (without shaft)Shaft Diameter: Approx. 3.175mm or 0.1inShaft Length: Approx. 14.5mm or 0.6inRotor Size: Approx. 12.5x7.2mm or 0.5x0.3inApplication: Suitable for 1 or 10 1 or 12 RC Off Road, Drift Car.Package List:1 x Sensored Brushless Motor 1 x Induction Wire1 x ManualNote:1. Please allow 13mm error due to manual measurement. Thanks for your understanding.2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.