Optimized Performance: EMAX ECO II Series 2207 motors are engineered for precision and durability to meet your racing or aerial photography needs. Advanced Engineering: ECO II motors are crafted with premium materials to deliver reliable, stable power for competitive FPV racing and smooth operation for 4K video quadcopters Small air gap for high power and improved efficiency Clockwise Rotation: Each motor features a clockwise (CW) thread configuration for easy installation and secure propeller connection Compatibility: Perfectly suited for a wide range of RC FPV racing drones and quadcopters, these motors are versatile for both amateurs and competitive racers seeking superior performance Testltem:KV2400 Motor Dimensions:Φ27.5 x 33.2mm Framework:12N14P Bearing Shaft:4mm Lead:20#AWG 120mm Idle Current (10V):2.2A Internal Resistance:41mΩ No.of cells:3-4S Propeller:5 inch-5.5 inch Peak Current (6S):43A Max.Power (6S): 720W Color: Silver Material: Metal Package Contents: 1 x Brushless Motor 1 set Accessories