[zrobotics]

OK, I'll need to see a source on increased pollution. I really doubt that a motorcycle is putting out more pollution than an average American-size vehicle. For example, my sport bike gets 59MPG, and I've owned multiple bikes that got >100mpg. Even without a catalytic converter, how is that more pollution than a single commuter driving in a truck or SUV getting 20MPG and likely shedding more road and tire particulate due to the increased weight.

Edit: although the noise thing is valid, I'm perpetually annoyed with the "loud pipes save lives" crowd, that's obnoxious.

[briHass]

For exhaust emissions, motorcycles are often dramatically worse than modern vehicles with catalytic converters.

https://gearjunkie.com/motors/motorcycle-vs-vehicle-emission...

[digdugdirk]

Of note, that article was mostly highlighting older motorcycles as dramatically worse when comparing them to newer vehicles.

See this article to show how a modern motorcycle would be ~100x less polluting than the example vehicle given in the article referenced:

https://www.acem.eu/new-euro-5-environmental-standard-for-mo...

[cuddlyogre]

Does that include motorcycles that have illegal aftermarket exhaust systems with all emission controls removed in an effort to make them as loud as possible? This accounts for about 80% of them, so it's irrelevant how they function by design.