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Kawasaki ZRX 1200R
. The Kawasaki ZRX1200R, a standard/naked motorcycle, was manufactured in Japan from 2001 until 2008. It is an evolution of the ZRX 1100, a stylized replica of the "Eddie Lawson Replica", a motorcycle made famous by the superbike racing champion of the same name.[1] With the ZRX1200R, Kawasaki's goal was to produce a motorcycle with the performance of a modern motorcycle, while retaining a design similar to the original Eddie Lawson Replica. Worldwide, the ZRX 1200 was available in three guises: the ZRX1200S, which was partially faired; the ZRX1200R, which had a bikini fairing; and the ZRX1200N, which had no fairing. Unlike sport bikes, full handlebars made of tubular aluminum are utilized. For comfort, the saddle contains more than one centimeter of padding between the seat covering and the pan. Foot pegs are positioned similar to standard motorcycles, creating a seating position reminiscent of the classic Universal Japanese Motorcycle (UJM). The frame is conventional steel tube with the engine supported in a removable cradle. The suspension configuration is similar to that found on a UJM. The lay-down rear shocks, designed with a built-in remote reservoir, are adjustable for preload and damping. The front suspension consists of conventional forks with adjustable damping and preload. The reinforced swing arm was designed to mimic the modified/aftermarket swingarms produced in the 1970s. The bike features a liquid-cooled 1164cc inline 4-cylinder engine. Induction comes through four 36mm Keihin Constant Velocity carburetors. The exhaust system is a 4-into-1 stainless steel unit. The exhaust system on models produced up to 2004 are painted black, with the exception of the muffler, models produced from 2004-onwards are equipped with polished exhaust systems.
Introduced in 2001 as a replacement for the ZRX1100, the ZRX1200R is much more of an update than it looks. Externally similar to the 1100, the ZRX1200R had a host of engine changes, all aimed at modernizing the design and improving power delivery. The 112cc capacity increase to l,164cc was made possible by replacing the old engine's steel cylinder liners with a plated aluminium block, but the altered block meant new crankcases. The chassis was less radically altered. A stiffer swingarm and revised shock positioning, with slightly longer wheelbase, improved stability. The neat headlight fairing was retained on this ZRX1200R model, and instruments and controls were similar. Kawasaki also produced an unfaired ZRX1200.
The Kawasaki ZRX1200 musclebike delivers the style and character of
early-1980s factory Superbikes, but with modern-day performance. With its
distinctive paint schemes, bridged-aluminum alloy swingarm and four-into-one
exhaust, the hugely popular, well-acclaimed ZRX1200R calls to mind the
KZ1100 Eddie Lawson Replica from Kawasaki's early racing years.
Engine vibration is reduced, especially in the 2,000-rpm range, due to a
diaphragm spring that has been placed between the primary gear and clutch
housing. The spring not only provides smooth low-rpm operation, it also
works with the shift drum and cam profile to help improve shifting of the
five-speed transmission.
The engine rests in a tubular-steel, double-cradle frame with an additional
gusset behind the steering head for greater rigidity. The swingarm pivot is
located for excellent rear suspension action and traction from the wide
rear-wheel, and to reduce chain-torque reaction. The swingarm features an
underside-braced design, and is shaped for increased rigidity.
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Any corrections or more information on these motorcycles will be kindly appreciated. |