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Suzuki GSX-R 750 K2
Suzuki's GSX-R750 is one of the longest running superbikes available today, and it has gained a legendary reputation over the years. From the first GSX-R750, introduced in 1985, to the current 2002 model, there have been seven major updates, and many more minor changes.
In the process, power has gone up from an optimistic 75kW (100 bhp) in 1985 to 105 kW (141 bhp) in 2000 and weight went up from 176kg (3881b) to 208kg (4581b) in 1992 before coming back down to 166kg (366 lb) in 2000.
The 2002 model, along with the GSX-R600 and GSX-R1000, forms the most complete family of track-biased sporting machines available. Its on-paper statistics are startling - it weighs just 166kg (366 lb), yet produces over 105kW (140bhp). The sharp, race-replica bodywork is wrapped around a taut, stiff aluminium twin-spar frame, with fully adjustable race suspension at either end.
The engine is a rather conventional design, with liquid-cooling, a 16-valve cylinder head and a six-speed gearbox. The fuel-injection is noteworthy though - its advanced dual throttle valve SDTV fuel-injection system uses a cunning combination of computer-controlled valves to match air flow to the engine's demands and the rider's throttle input, optimizing power production and delivery, while improving emissions control. On the road, the GSX-R750 can be rather tiring, its focused nature and revvy power delivery making it a chore if the rider is not in the mood for fast, aggressive riding.
On a track, however, the situation is reversed - the GSX-R's chassis package makes getting the best from the motor very easy indeed.
The upside-down Kayaba forks are well-damped, and firmly sprung, while the rear monoshock never shows any hint of fade or overheating. The four-piston Tokico brake calipers work much better than the earlier GSX-R's six-piston items, and wide sticky radial tyres provide immense grip and stability.
2002-03 GSX-R 750
2003 models differ cosmetically by having lighter, simpler mirrors and slightly
altered indicators. And that’s it. Clearly Suzuki’s engineers agree with the “if
it ain’t broke, don’t fix it” philosophy. The chassis received some changes in
2001, adding the facility to adjust the swingarm pivot and thus change the
chassis geometry, but only with parts which came with the full race kit. Engine
changes, again in 2001, are limited to a subtle tweak of the injection which
replaced the cable driven throttle secondary butterflies with stepper motor
driven ones instead. In other words, there’s not a lot changed. Even the
graphics are almost the same. Well, at least the learning curve shouldn’t be too
steep.
GSX-R 750s were always the purest of the family – built solely as a platform for
racer homologation and as such less compromising and more sharply focussed than
all the other pretenders. This incarnation, though, while still very obviously
race biased, is one of the more useable sportsbikes on the market. As a result
it is blessed with a horn that works, mirrors that allow a view of the road
rather than the elbows and a riding position that allows a day’s riding to take
place without a pre-booked osteopath appointment at the end of it. Having had a
2000 model for three years, I can testify to it’s day to day usability as a
commuter, tourer and trackday weapon par excellence, as well as anything you may
care to think of between those extremes.
Something else that hasn’t noticeably changed is the chassis, which is one of
the finest ever made. Handling is excellent, with a crisp turn-in allied to
excellent stability. The standard fit steering damper keeps a slightly over-firm
hand on the front end, but becomes unnoticeable as speeds increase. The GSX-R
seems completely unflustered by accelerating hard out of bumpy corners, trailing
the brakes into greasy roundabouts, being chucked around with laden panniers and
a squashy bag bungeed on the back, whatever. It just takes what you throw at it
and gets on without fuss.
Source
Motorbikes Today
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Any corrections or more information on these motorcycles will be kindly appreciated. |