<ul><li>Precision Engineered Bearings: The Emax ECO II motors are equipped with precision bearings, ensuring a smoother and more efficient rotation, enhancing overall flight performance.</li><li>Recommend battery 3-4s,Shaft Diameter 2.0</li><li>Weight and Size:weighs 9.6g/ size 19.3*15.6mm</li><li>Package list: 4* 1404 motors</li><li>Comprehensive Package Contents: Each motor comes with a set of M3 screws (8mm, 7mm, 6mm), an aluminum M5 nylock nut, and a washer and screw for the shaft, providing all necessary hardware for installation.</li></ul><br><br>

Emax ECO II Series 2207 1700KV 1900KV 2400KV Brushless Motor for RC Drone FPV Racing by Speedybee (2207 1900KV)