Hitchcocks Forum

does anyone know of a black silencer for my 2009 royal enfield classic 500 --and what decibels it chucks out to pass mot (legal level is 87bd)
thanx

There's at least 6 listed in accessories on this site, might be what you're looking for.

My bike [or van] has never been tested for noise levels at an MOT.

Is this something new?


Frank

I hope it's not an MOT requirement as mine is due on my old girl, and she is loud, what's that about waking up the neighbours!

I've just checked, all it says is:

"The exhaust system and silencer should be in such condition, or of such a type, that the noise emitted from the motorcycle isn't clearly unreasonably above the level expected from a similar motorcycle with a standard silencer in average condition."


Frank

Unless its very noisy no one checks the noise level as is not practical in an operational policing environment to fully comply with all the requirements of the ISO standard 5130:2006 (Acoustics - Measurements of sound pressure level emitted by stationary road vehicles).

Interesting document from Essex police https://www.essex.police.uk/getmedia/5a ... fences.pdf showing how hard it is to do especially for bikes.

I once asked a Harley owner who didn't have any silencers fitted how he got away with it at the MOT and he said "He just writes slightly noisy on the form! Guess it depends who you take it to

I believe it's " At the discretion of the Examiner" ??