7. Audible warning

Audible warning (horn) rules and inspection for motorcycle MOT tests.

7.1. Not in use

7.2. Not in use

7.3. Not in use

7.4. Not in use

7.5. Not in use

7.6. Not in use

7.7. Audible warning (horn)

An audible warning must be loud enough to be heard by other road users.

It must not be:

  • gong
  • bell
  • siren
  • more than one tone

Motorcycles first used on or after 1 August 1973 must emit a continuous or uniform sound that is not harsh or grating.

Motorcycles first used before 1 August 1973 can have a bulb horn as the audible warning.

You must run the engine of a motorcycle with an electrically operated horn if a battery is not fitted or is insufficiently charged.

Defect Category
(a) Audible warning not working Major
(b) Audible warning control insecure Minor
(c) Audible warning not in accordance with requirements Major