AvatarRC T-Motor F40 V2 FPV Racing Motors - Compatible for 180 to 300mm frames T-Motor F40 Brushless Motors are Designed and Built from the Ground Up for FPV and FPV Racing Perfect for size 180 to 300mm Quadcopters and other Multirotor Drones Compatible with Oneshot and Damping Light Electronic Speed Controllers (ESC) Steel Hallow Motor Shaft Helps with Weight Reduction, Heat Dissipation, and is Tougher in Crashes Provides over 700g of Thrust with a 4 Cell Lipo and Gemfan 5x4.5 Bullnose Propellers (Also compatible with other propeller sizes)