25-07-20, 06:29 PM
It's a bit like emission levels with cars I guess. A ten year old car wouldn't pass the same emission test as a brand new model would and the same with a 20 year old car if it took a test applicable to say 2010.
I think measurable noise limits on bikes were introduced in the early 70's (?). Prior to that it was just 'must not be excessive' or words to that effect.
The fact is that anything with standard pipes made since then isn't going to be overly offensive. The current fad for completely unsilencing the exhaust on these 125's going around at the mo is what's getting on the publics' wick I reckon