We all know by now that Harley-Davidson motorcycles are known for their potato-potato-potato sound. You can recognize a Harley miles away just from its sound (and probably the loud pipes). The same goes for most BMW and Ducati motorcycles.
But did you know that the sounds are engineered? It used to be that engineers and designers looked after the engine and then the motorcycle frame; the sound came automatically afterward. The only thing the engineers looked at when it came to the sound of the engine, was if it stayed within the legal regulations envelope....more