Street legal 500 cc 2 stroke
So what would happen if you built a bike with a 500 cc 2 stroke engine as the power plant? People custom build choppers that can't meet the noise requirements and probably don't meet the emission tests either. But these bikes are street legal. So while it may be difficult to get a manufacturers 2 stroke to become street legal, it may be easier to make a custom bike with a 2 stroke motor street legal.