Introduced in 1985, the GSX-R750 is a 750-cc racing bike. It is similar in looks to many of the later developed racing bikes, but remains one of the more affordable options. In terms of weight, the GSX-R750 is placed neatly between the Middle Weight and Lite Weight categories, creating its own niche. Suzuki continues to improve and produce the GSX-R750, with new models being released almost yearly.
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The GSX-R range has been developed with three different types of cooling systems.
The first are air- and oil-cooled systems. These engines were chosen due to the fact that they were so much lighter than the popular water-cooled systems of the time. Some of the models in this section include the 1985 GSX-R750-F, the 1989 GSX-R750-K and the 1992 GSX-R750-N.
The second are water-cooled systems, where water circulates around the engine and through the radiator. Some of the models in this section include the 1992 GSX-R750-WN, the 1994 GSX-R750-WR and the 1995 GSX-R750-WS.
Lastly, there are Suzuki Ram Air Direct systems, in which the air intakes at the front of the bike force air directly into the airbox. Since 1996, all models use the SRAD system, starting with the 1996 GSX-R750-T.
Throughout its lifetime, the GSX-R750 has had a 16-valve, four-stroke engine, utilising a double overhead cam in-line valve configuration. Over time, the engine has varied from 748cc to 750cc, but has remained constant at 750cc since the implication of the SRAD system. The later GSX-R750 motorbikes also have a six-speed gearbox.
Suspension and Braking
The first GSX-R750 had a hydraulic twin disc front brake, with dual opposed piston calipers and hydraulic single disc rear brakes. From this, Suzuki moved on toward 320-mm duel hydraulic disc front brakes and 220-mm single hydraulic disc rear brakes in 1988. Minor changes were made to the brakes throughout the development of the Suzuki, but the GSX-R750 still utilises duel hydraulic disc front brakes and single hydraulic disc rear brakes. The GSX-R750 also has an inverted, telescopic, coil spring, oil-damped front suspension with a link type, coil spring, oil-damped rear suspension.
Weight and Dimension
In 1985, the first GSX-R750 had a dry weight of 176kg., with a seat height of 29.7 inches and an overall height of 47.2 inches. The overall length of the motorbike was 83.9 inches with a 24.4-inch width and 5.5 inches of ground clearance.
In 1988, the dry weight increased to 195kg., with an increased seat height of 32.7 inches and decreased overall height of 44.7 inches. The overall length also decreased to 80.9 inches, but at an increased width of 28.3 inches and lower ground clearance of 5.1 inches.
From 1988 up to 1994, the weight and size of the GSX-R750 remained stable, and in 1994, it started fluctuating. In 1994, the weight was reduced with a lighter engine, but this increased again in 1995. In 1996, the weight was reduced to 179kg.
In 2004, the GSX-R750 had a series of changes to its weight and size, with a reduced dry weight of 163kg., at a seat height of 32.5 inches and overall length of 81.7 inches. This weight and size has remained stable since 2004.
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