![]() The result? At 50 feet behind the car, “none of the motorcycles in the test can be heard inside the car.” At 33 feet behind the car, “even the noisiest motorcycles tested can hardly be heard inside the car.” With the motorcycles’ front wheel next to the car’s rear wheel, one of the motorcycles can be heard inside the car and three motorcycles can almost be heard but, “unfortunately it is too late to be safe.” With the bikes 13 feet in front of the car the motorcycles cannot be heard. There does not appear to be any traffic visible to affect the sounds recorded. It was not possible to replicate the tests while both motorcycle and car were moving, so the tests were done statically on a quiet side street lined with large apartment buildings. The idea was to see how much noise from motorcycle exhaust pipes actually reaches the ears of car drivers. The study was undertaken by the Association for the Development of Motorcycling in Romania, in conjunction with the Department of Road Vehicles at the Polytechnic University of Bucharest together with the Netherlands-based noise emissions specialist Enviro Consult. But the defense of the loud-pipers has always been that, “Loud pipes save lives.” A recent scientific study says no, loud pipes don’t save lives (but it does not address the question of whether loud pipes annoy anybody). ![]() “That’s the sound of freedom, boy!” Others find them as pleasant to hear as a two-stroke leaf blower right outside the window. ![]()
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