Product new high quality Made of high quality material, durable Children's electric car motor RS550 RS390 RS380 12V 6V RS555 24V 10 teeth 1 cm. The faster the speed, the smaller the torque, conversely, the slower the speed, the greater the torque. Speed: 23000rpm>16000rpm>10000rpm Torque: 10000rpm>16000rpm>23000rpm Torque and power: 570>555>550>390>380 Voltage: 6V /12V 24V strength: 550: 30-45W 390: 25-35W 555: 200W Type: children's electric vehicle motor Model: (optional) 380 6V 14000RPM 380 12V 5600RPM 380 12V 15000RPM 390 6V 18000RPM 390 12V 20000RPM 550 6V 11000RPM 550 6V 13000RPM 550 12V 10000RPM 550 12V 12000RPM 550 12V 16000RPM 550 12V 23000RPM 550 12V 30000RPM 555 24V 18000RPM 555 24V 30000RPM 570 12V 35000RPM Package Included: 1 * electric car motor 1 * gear 1 * motor wire Note: 1.The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness. 2.Please allow slight manual measurement deviation for the data.