This is the Castle Creations 1406 Series 6900kV 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: 6900kV Inp