Wednesday, July 19, 2006

Gunslinger: Suzuki GSX-R750 (1988-91 models)


The 1988 Suzuki GSX-R750 'Slingshot'

In addition to SACS and Hyper Sports, this Suzuki GSX-R also had ‘Slingshot’ emblazoned on its flanks. This came from the bike’s redesigned Mikuni carburetors, which had straighter intakes for better combustion efficiency. This GSX-R, with its then radical, all-new styling, looked menacing. Mess with it and it would kill you.

Power was up to a real world 92 horsepower and the bike was capable of doing more than 230km/h in a straight line. The new, shorter stroke 749cc inline-four got a new bottom end (adapted from Suzuki’s own GSX-R1100), revved quicker and higher than the old model’s engine and was less peaky. While the older GSX-R didn’t wake up at all before 7,000 revs, the new one started making its grunt from 5,000rpm onwards – a big improvement for low speed, city riding. In a surprise move though, the M model went back to a longer stroke engine (perhaps to improve rideability and further reduce peakiness…?), which also made a genuine 100bhp for the first time.

The bike’s chassis was a strengthened, beefed-up version of the first GSX-R’s perimeter alloy frame, and steering geometry was made more radical in order to quicken the steering. The M version was the first production motorcycle to get upside-down (USD) front forks, which are now almost ubiquitous on all sports machinery. The ‘Slingshot’ GSX-R also got wider wheels, stickier rubber and higher-spec, multi-adjustable suspension – all of which helped in making it a better tool for the racetrack, where a lot of these bikes ended up being used. With its near unburstable engine and its proclivity for wheelies, stoppies and other acts of assorted two-wheeled hooliganism, this was a ‘proper’ Gixxer and a worthy successor to the first bike.

GSX-R 750 (models J, K, L and M)
Years:
1988 - 91
Power: 92bhp
Weight: 208kg
Top Speed: 235km/h
0 – 400m: 12.22 seconds

Right click and download a motorcycle-usa.com roadtest video of the 2006 Suzuki GSX-R1000 here


An old sketch of the Slingshot GSX-R, which I made in 1992
This video shows 20 years of evolution of the GSX-R...

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