law on horns?

[Pol Anorl]

What are the laws on bike horns? does it have to be the standard boring horn or can you add a musical horn ?
is there a max db level?

Not going to add a musical horn was just using as an example.
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[virus]

basic reasons for failiure of an MOT relating to Horn.

[Pol Anorl]

[blurredman]

My cars have two tones.. Makes it quite loud. But they pass every time. Possibly because they're hidden under the bonnet??
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[Pol Anorl]

[Pete.]

Just for clarification - does the MOT manual specifically state that dual-tone horns that sound simultaneously are disallowed or is it just where the two tones sound at different time?
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132.9mph off and walked away. Gear is good, gear is good, gear is very very good

[virus]

[Rogerborg]

Just put the stock one back on for the MOT, it's hardly rocket surgery.

And read RTA 1988 Section 67 (6).
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[Pol Anorl]

[iooi]

[Pol Anorl]

[Teflon-Mike]

Clarification: 'Duel Tone' & 'Two-Tone'
Regs for cars I believe actually demand a duel-tone, horn; one which provides two, distinct 'notes', in order to cover a range of the audible frequencies.
Police Cars, (I believe) used to achive the 'Nee-Nar' Siren noise they had in my youth, by putting a Lucas three pin indicator flasher between two horn cones, so one sounded then the other....
That;s a 'two-tone', the two notes seperated by time, not sounding similteniousely.

Colonol Bogie, Whistling Dixie, 'play me a tune' air-horns, as popular at the same time as 'Dukes of Hazard' was screening on network TV for the first time..... were naff then, and no less naff now.....

Even the little electroinic ones with five different siren/intergalactic space phazer gun effects, we got as kids to boilt to the handlebars of our Raleigh Grifter.....

If you keep the standard horn, and simply plug any 'auxilliary audible alert device' off the circuit, though, becomes a grey area... you HAVE a complient and functioning horn.

Whether drowning it out with an air-horn, would come under other laws... and provided you aren't making a noise like a police or emergency siren?

If sufficiently load or offensive, Probably 'Anti-Social Behavior Act'

If it whistles Dixie or Plays Colonal Bogie, probably the Mental Health Act....
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[stinkwheel]

Although I did once see a trike that did the tarzan call.
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[Dazbo666]

[keggyhander]

Jesus it's not rocket science.

Stebels produce a "chord" by combining two notes Simultaneously. No different to a truck horn. Both bikes in my garage have them and I'm soon to mount one on the car. Legal.

Two-tones don't play simultaneously. Illegal.

[Rogerborg]

[Noxious89123]

[yambabe]