This Suzuki racing motorcycle has 14 gears

By Richard Fowler of Motorsport Retro. This amazing piece of machinery was the last of the purebred 50cc Suzuki racebikes built in 1967. And it’s a technological as well as aesthetic masterpiece: the engine was tuned to an extraordinary 350hp per liter. The RK67 motor was a two-stroke, water-cooled parallel twin, and the Japanese factory managed to squeeze a remarkable 17.5hp out of it, with a redline of 17,300rpm. To keep the bike in its extremely narrow power band, Suzuki fitted the bike with a 14-speed gearbox. The RK67 also sported an aluminum frame, and tipped the scales at a...