Kawasaki Ninja ZX-7R Specifications

Written by brianna byrne
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Kawasaki Ninja ZX-7R Specifications
Kawasaki's Ninja motorcycles are sporty but street-legal. (street image by Aleksander Onisak from Fotolia.com)

Manufacturing motorcycles since the 1960s, Kawasaki had over two decades of experience when it first released the Ninja ZX-R make of bikes in 1989. The Ninja make has been relatively popular and Kawasaki still offered new models for 2011. The Ninja ZX-7R model lasted from 1991 to 2003. In its final year this model featured many of the same specs seen in previous years.

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The 2003 Ninja ZX-7R came equipped with a four-cylinder, four-stroke engine with 16 valves and a double overhead camshaft. It had a displacement of 748cc (45.6 cubic inches), a bore and stroke of 2.87 by 1.76 inches and a compression ratio of 11.5 to 1.0.


Engine systems included a four-barrel Keihin CVKD38 carburettor, a liquid cooling system and a wet sump lubricator. Other systems include an electric starter and a battery and coil ignition. The 2003 Ninja ZX-7R came with a 12-volt, 10-ampere hour battery and NGK CR9E spark plugs.


The 2003 ZX-R7 also came with a return shift, constant-mesh transmission with six speeds. It featured a wet, multi-disc clutch and a chain driving system. The transmission's primary reduction ratio was 1.754, the final reduction ratio was 2.687 and the overall drive featured a top gear ratio of 5.203.

Chassis and Tires

The 2003 ZX-7R had a caster angle of 25 degrees and a trail of 3.90 inches. It also took tubeless tires in both front and back, size 120/70 ZR17 M/C in the front and 190/50 ZR17 M/C in the rear.


Weighing about 204kg. without fuel, the 2003 Ninja ZX-7R measured 82.28 inches in length, 29.1 in width, and 44.49 in height. It also had a wheelbase of 56.50 inches. A relatively small ground clearance of 4.13 inches did not allow for much leeway on uneven riding surfaces, making this bike much more suited to paved roads than rugged trails. The ZX-7R could hold up to 4.8 gallons of fuel and 3.8 quarts of engine oil.

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