Welcome to our store! Universal Fit: Features a 3.175mm output shaft, suitable for all 1/10 brushless RC cars. M3 screws included for versatile installation. High-Torque Design: Boasts a 4-pole, 12-slot motor design with CNC-machined 6061 T6 billet aluminum heatsink and a premium, refined appearance thanks to secondary oxidation treatment. Premium Components: High-purity copper windings maximize efficiency. High-speed ABEC5 oversized bearings ensure low friction, minimal noise, high precision, and extended lifespan. Precision Balanced Rotor: Enjoy smoother operation for enhanced reliability and maximum speed. Waterproof Build: Designed for maximum power conversion and precise performance. Features a removable/replaceable rotor and ultra-thin (0.35mm) stator laminations for excellent performance, high magnetic permeability, high silicon content, and superior heat resistance. Item Type: RC Brushless Motor Material: Aluminum Alloy, Copper, Steel Color: Orange Black Model: F540 KV (rpm/volt): 4370KV Watt: 800W Max Voltage: <12V Max Amperage: 66A Rotor Poles: 4 IO: 2.7A Max Speed: 50,000 Product Size: Approx. Diameter: 36 mm / 1.4 in Length: 50 mm / 2in Shaft Length: 15 mm / 0.6 in Shaft Diameter: 3.175 mm / 0.13 in Plug Type: 4 mm Banana Plug Application: For all 1/10 Brushless RC Cars Package Includes: 1 x F540 Brushless Motor 1 x User Manual Thank you for shopping with us!