This is a larger version of the Kaabo 160mm rotor which is factory fitted on Kaabo Wolf Warrior 11, GT and GTR series.
44mm PCD (Pitch Circle Diameter), as adopted on almost all eScooters.
Choose optional Black M5 Button Head Screws as desired. Typically required when the Hex/Allen head has stripped. Higher tensile screws have a more robust head, go easy on torque with the high tensile to ensure they do not strip the thread in the motor
Notes:
If uplifting from 160mm, you might want to check the notes for the HB427-4M calliper as it has tips on brackets.