This is the Castle Creations 1406 Series 5700kV Sensorless brushless Motor for cars. FEATURES: Ideal for 1/10 scale buggies and trucks 1.4 inch diameter slotted strator Four neodymium rotor magnet Removable endbell 540 size can replaces many stock Brushed motors Four pole motor YOU WILL RECEIVE: Castle Creations 1406 Series Sensorless brushless motor REQUIREMENTS: ESC for brushless motor SPECIFICATIONS: Can length: 1.9" (49.mm) Can diameter: 1.4" (36mm) Weight: 6.5oz (185g) Shaft diameter: 1/8" (3.2mm) Connector: 4mm gold Wire length: 4.5mm kV rating: 5700kV Input Voltage: 10 NiMh /3S LiPo max JAW 2/3/11 ir/jxs &