USB Controller Board -robot tire Smart Car Robot Wheel Highlights generic brand robot tire Smart Car Robot Wheel Description: Voltage: 3V~6V DC Reduction ratio: 1:48 Maximum torque: 800k.cm Diameter tire diameter: 65mm Tire thickness: 26mm specification: DC gear motor no load speed (6V): 200 RPM 10% no load current (6V): 200mA no load speed (3V): 90 rpm 10% no-load current (3V): 150mA Voltage: 3-6V Reduction rate is 1:48 Tire size Diameter wide: 65MM Width: 26MM Package includes: 1 piece smart car wheels 1 DC gear motor piece Note: Due to the manual measurement, please allow 1-2mm differences in size. Due to the light and screen difference, the item's color may be slightly different from the pictures. Try to understand.