Item Name: For RC Aircraft Brushless Motor C4250 800KV DC Motor Motor External Rotation. Number of rotor poles: 14No-load current: 2.3AResistance. 0.0212Battery: 2-5S LipoMax. power: 1250WProject Name: C4250Max. current: 62AMotor size: as shown in the pictureKV: 800KVWeight: 205gProject Name: Brushless MotorPackage included.1 x C4250 brushless motor1 x Motor AccessoriesNotes.1.1cm=10mm=0.39inch2.Due to manual measurement, please allow 1-2cm error. Please make sure you don't mind before