Powerful, smooth and quick is what describes F1103 8000KV motor by T-Motor. This motor is specifically designed to fit 2-3S toothpick builds! Made with NMB502Z bearing of high RPM for steady operation and step shaft design to prevent the shaft from disengaging. Features Powerful Smooth Quick Specifications KV: 8000 Configuration: 9N12P Shaft Diameter: 1.5mm Motor Dimensions: Ø14.4*14mm Weight Including Cables (g): 5.3g No.of Cells (Lipo): 2-3S Idle Current@10v (A): 0.58A Internal Resistance: 163mΩ Max Continuous Power (60S): 137A KV: 11000 Configuration: 9N12P Shaft Diameter: 1.5mm Motor Dimensions: Ø14.4*14mm Weight Including Cables (g): 5.1g No.of Cells (Lipo): 2-3S Idle Current@10v (A): 0.65A Internal Resistance: 101mΩ Max Continuous Power (60S): 106.4W