The chassis number of a Honda Dio scooter is usually stamped on the frame , often near the steering neck/handlebar stem area, and it is also listed in the RC/registration papers.

Where to check

  • On the scooter frame near the front steering column or under the front body panel.
  • On the registration certificate, insurance papers, or other vehicle documents.
  • If needed, compare it with the engine number, which is usually on the engine casing, not the frame.

Quick tip

For many scooters, you may need to turn the handlebar fully and look around the inner front frame or under the seat/body cover to spot the engraved number clearly.

If you want, I can also show you how to find the engine number on a Dio.