Honda could have joined the two-stroke war. Instead, it tried to beat them with an oval-piston four-stroke. The NR500 didn’t conquer Grand Prix racing — but its engineering story became legendary. #OneLungRacing #2Stroke #HondaNR500 #HondaNR750 #OvalPiston #HondaRacing #MotorcycleHistory #GP500 #MotorcycleEngineering #RaceBikes #GrandPrixRacing #VintageMotorcycles #TwoStroke #FourStroke #BikeHistory #RacingHistory #MotorcycleStories #ClassicBikes #HRC #Motorsport