Honda's NR500 GP racer and NR750 endurance racer and 1994 $60,000 streetbike launched a million dreams but were failures in the grand scheme. The bikes were beautiful innovations and technical striving during a magic time at Honda when the company explored anything that seemed possible. Learn more about the 8-valve-per-cylinder four-stroke V-four that acted like a V-8 and aimed for 22,000 rpm in racing form. Technical Editor Kevin Cameron heard the NR500 at Monza, and Editor-in-Chief Mark Hoyer, like many, bought a 1995 Honda VFR750 because it had echos of the NR750. Listen now to learn about these amazing motorcycles and their oval-piston engines!

Read the Kevin Cameron tech feature on the Honda NR500 and NR750 on cycleworld.com: