In the latest issue of Cafe Racer magazine, we take a deep look at some of the true visionaries that changed motorcycle design and technology over the years. Though we’re all familiar with names of groundbreaking engineers like Erik Buell and Soichiro Honda, we chronicle the careers of some lesser-known bike designers as well. One name that came up repeatedly in our staff’s research may not be at all familiar, that of Etsuo Yokouchi. He’s the sole engineering genius responsible for creating Suzuki’s GSX-R a motorcyle that made roadgoing race replica sportbikes a reality.
During the 1970s and early ‘80s, the roads were awash in bland-but-capable motorcycles known derisively as the UJM- Universal Japanese Motorcycles. Imbued with modest, cookie-cutter designs that made them as aesthetically pleasing as your average kitchen appliance – think 130 MPH toaster or microwave oven – these ubiquitous four-cylinder workhorses may have been faster and more reliable than the British bikes they’d come to replace, but bland styling and uninspired handling (due to cheaply produced, pressed steel frames) made them anything but desirable. At Suzuki Motor Corporation’s sprawling Hammmatsu plant, racing fan and engineer Etsuo Yokouchi had long marveled at the sleek, purposeful dimensions of Grand Prix racers. The two largest Japanese manufacturers had already begun introducing race-inspired road machines in the mid-1980s with Kawasaki’s best-selling GPZ line and Honda grabbing headlines for its all-conquering V4 Interceptor. Working alongside longtime associates at the Yoshimura tuning firm, Yokouchi convinced Suzuki to take a risk on developing an ultra-lightweight 750 four that produced a then unthinkable 100 horsepower. The new machine would require major expenditures of R&D money, but the target of a sharp-handling bike built around an all-new aluminum perimeter chassis was just what the world needed, he insisted. The first 1985 GSX-R proved Yokouchi’s hunch to be more than correct: the racy, fully-faired motorcycle changed the face of Japanese motorcycles like no other, selling faster than Suzuki could manufacture them. The GSX-R was equally adept on racetracks as it was on the road, attracting a dedicated following for the past 40-plus years. There’s more to read about Yokouchi and other brilliant minds from motorcycling’s recent past in the latest cafe Racer magazine- grab one now.
