Description: 4 poles 12 slot Hi-torque motor design. CNC machined 6061 T6 billet alumium heatsink can. High smoothness, high accuracy and speed. Dynamic balance control within 10mg, removable and easy to replace. Suitable for 1/10 RC racing car, truck, crawler, and SUVs etc. Specification: RPM: 3930KV Max Current: 60A Max Watts: 820W Sensored: No Shaft Diameter: 3.175mm Shaft Length: 15mm Plug type: 4mm golden banana plug Size Chart: Can Diameter: Approx. 36mm/1.42inch Can Length: Approx. 50mm/1.97inch Package Includes: 1 Piece F540 3930KV Slot Brushless Motor Note: Due to the difference between different monitors, the picture may not reflect the actual color of the item. Due to manual measurement, there may be 1-2mm error in size