There are few things that make me angrier than when a Harley-Davidson style motorcycle (or a pack of them) drive past me while I’m walking down the street. I can’t believe cities haven’t prohibited them, especially at night. Those things are specifically designed to create noise pollution. They’re so fucking obnoxious, even just thinking about it while I’m writing this is working me up.
Harleys stock are actually under the legal noise limit (80 decibels i think?) and are generally that loud due to straight exhaust and a specific cam shaft they use to squeeze more performance out of them. My understanding is folks prefer them to be loud so that they can be better noticed by cars and get hit less often. Dirt bikes are around 100 decibels, perform like trash and shouldn't be on the freeway near cars in…
As a member of a motorcycle riding family in the US (I don't ride, but several close family members do) this is hilariously wrong. They like it loud because they like the sound, and they like to get noticed. I say hilariously because I constantly joke with my family members about how silly the bike culture is, and to give full credit to them; they agree.