1800kV 300-400 Size Brushless Motor Upgrade Ideal For Model Boats, Aircraft and Drones. This motor is a great upgrade from brushed to brushless for faster speeds! Replace your 300-400 size brushed motor with this. Suitable for smaller scaled RC boats. We also have these motors available with speed controllers as a bundle. VERY SPECIAL OFFER FOR THIS RANGE OF MOTORS!! ONLY £9.99! Different KV's available. Specification RPM/Volt with no load - 1800kv Max Efficiency: 80% Max Efficiency Current: 4-10A (>75%) Current Capacity: 12A/60s No Load Current @ 10V: 0.5A Voltage Range: 6v-12.6v Suitable Batteries: 2-3 Li-Po - 5-8 Cell Ni-MH Motor Dimensions: Φ27.5 x 30mm Shaft Diameter: Φ3.17mm Shaft Length: 11mm Weight: 47g/set Comes with 3 x 3.5mm Gold Plated Male Bullet Connectors on Wires Cable Length - 7CM Rear Motor Mount and Prop Driver (for Aircraft) included