Suzuki’s Landmark GSX-R750 shook up the world of sports bikes
It’s 40 years since Suzuki released it’s first-gen GSX-R750, a machine which was a significant landmark in the development of the modern sports bike.
We started seeing it in late 1984 for the 1985 model year when it announced the then stunning basic stats of 100hp for 176kg dry. It was a pair of numbers that suddenly made a lot of litre-class machines look redundant.
It is difficult to overstate the impact the GSX-R750 had on the local, and world, market. While we hear plenty of hype about how a new design revolutionises a class, blah blah, the Gixxer really did, and it was years before the other Japanese makers stuck their necks out quite so far when it came to producing an affordable, ultra-light and serious racer rep for the road. In many ways, it defined what we now accept as super-sports motorcycles from Japan.
If the raw power and weight numbers got your pulse going, a harder look at the 750 spec sheet was a performance hound’s dream. For a start, there were flat-slide carbs as standard – everyone knew these were the choice of race teams. Then there was the beefy (for the time) 41mm front fork, an alloy frame for all to see and, strangely enough, an oil rather than water-cooled engine design.
The justification for that little item ran along the lines that it could do pretty much everything a ‘normal’ liquid-cooling system could achieve, but with less weight. Work on this idea had been underway for some time. The air-cooled GS1000R world endurance race engine employed oil-cooling jets on the underside of its pistons, which in turn had been developed to control the heat range of the far less successful XN85 turbo.
All this added hugely to the bike’s street cred, as did the fact that it really did mirror much of the development done to make the GS1000R so successful. The chassis, according to design team member Akimasa Hatanaka, was the subject of “a lot of heated discussions. How should we weld the frame? What materials are best? In a lot of ways, we were groping in the dark. But we had the race experience to lead us. We knew that following what worked in racing would help.”
If you were to build a collection that illustrated the evolution of the modern sports motorcycle, these are the bikes you would include: 1974 Ducati 750 SS, 1984 Suzuki GSX-R750, 1992 Honda CBR900RR, 1994 Ducati 916 and 1999 Yamaha
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