How One Mechanic's "ILLEGAL" Six-Cylinder 250cc Engine Outsmarted Harley-Davidson
What happens when a young engineer with no racing pedigree decides to cram six cylinders into an engine smaller than a coffee mug—and ends up humiliating the entire European motorcycle establishment?\n\nIn this video, we explore the incredible story of Honda's RC166, the 250cc inline six-cylinder masterpiece that screamed to 20,000 RPM and dominated Grand Prix racing so completely that competitors were forced to abandon their designs entirely. From Soichiro Honda's audacious declaration to conquer the Isle of Man TT, to engineer Shoichiro Irimajiri's obsessive pursuit of the impossible, discover how a Japanese company with no racing heritage built a tiny engine that matched family car horsepower and changed motorcycle engineering forever.\n\n#motorcycles #honda #racing #engineering #history
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