Surpass Hobby Rocket 540 V6M 21.5T brushless motor is specially designed for 1/10 RC car. It is compatible with sensored/sensorless ESC. Features: 540 21.5T 2400KV Competition sensored brushless motor,suitable for 1/10 RC car. Compatible with any sensored /sensorless ESC. Dual sensor port, convenient to wire. CNC machined billet 7075 aluminum heatsink can. High purity copper windings maximizes conductivity. High power solder tabs. Removable/replaceable rotor. Precision engineered for maximum energy conversion. Adjustable timing. IFMAR, ROAR,EBRA BRCA compliance. Specifications: Size: 540 Design: Sensor Rotor Poles: 2 Turns: 21.5T Watts: 100W Support Battery: 2-3s LiPo Max Amps: 28A KV(RPM/Volt): 2400KV Diameter: 36mm Length: 54mm Shaft length: 14.5mm Shaft diameter: 3.175mm Rotor: 12.5 * 7.2mm Type: SPEC Mounting Hole: M3 Weight: 146g Package List: 1 * 540 V6 21.5T Sensored Brushless Motor 1 * Sensored Connected Cable 1 * Manual Surpass Hobby 160A Brushless ESC Use for sized 540 Sensored brushless motors Features: Efficient Heat Dissipating System Built-in super BEC Adjustable Throttle & Brake Built-in Electronic Switch Separate Programming connector Removable aluminum fan housing Specification: Item Type: Surpass Hobby TS160 V2 ESC 32 BIT PROCESSOR SYSTEM: Dimensions:38.2(L)x30.6(W)x32(H) Weight: 54g Voltage input: 6V-12.6V Peak Current: 760A Continuous current :160A Motor Limit: Over 4.5Turns B.E.C.:5A 6V/7.2V Motor Type: Sensored 540 sized brushless motors Forward/Brake/Reverse: Yes (Preset- Forward/Brake) Multi Protection System: Yes TIPS! Do not worry about making mistakes. You will not damage the ESC during setting.lf indoubt, you can always reload the default set up and start over again. Notice: Initial set-up of the throttle end-point of the ESC before using