2003Kawasaki ZRX 1200 R

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The 2003 Kawasaki ZRX 1200 R is a retro-styled naked bike powered by a robust 1164cc inline-four engine delivering 120 horsepower. Built for riders seeking classic aesthetics with modern performance, it excels as a versatile middleweight that handles daily commuting and spirited weekend riding with equal capability. Known for its aggressive styling and dependable engineering, the ZRX appeals to enthusiasts who value character and practicality over cutting-edge sportbike aggression.

Capacity: 1164.0 ccm
Engine: In-line four
Gearbox: 5-speed
Dry weight: 223.0 kg
Seat height: 790 mm
Power: 120.0 HP (88.3 kW)

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What’s new for the 2003 Kawasaki ZRX 1200 R

vs the 2002

Spec	2002	2003
Power	122.0 HP (89.7 kW)	120.0 HP (88.3 kW)
Dry weight	227.0 kg (500.4 pounds)	223.0 kg (491.6 pounds)
Front brakes	Dual disc	not listed

Other years 2001 2002 2003 2004 2005

How it rides

Editorial estimate from the spec sheet - not lab tested

Off-road & trail5%

Cornering65%

City riding55%

Daily riding65%

Touring55%

Two-up60%

Track55%

Best for: Designed as a big-bore, air-cooled-style naked that blends classic 1980s superbike looks with modern chassis and brake performance for spirited road riding.
Built for: A muscular, torque-driven in-line four with an old-school naked bike attitude, rewarding riders who enjoy raw power delivery and analog carbureted feel.
Not ideal for: Not a good fit for beginners, off-road enthusiasts, or riders prioritizing lightweight agility and modern fuel-injected refinement.

Scores are derived from the spec sheet using the same model across every bike, so they compare like for like.

Will it fit you?

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Your height

Inseam (optional)

Units

At 790mm, a rider of 68.9" with a 31" (estimated) inseam will reach the ground with both feet flat on the 2003 Kawasaki ZRX 1200 R, with a relaxed knee angle of around 120 degrees and a forward-leaning riding position.

Assumes about 30mm of suspension sag once seated. This is an approximation from category-typical geometry, not a measurement of this bike or of you - sit on one before you buy.

More bikes at 751-820 mm — Middle Ground →

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Full specifications

Engine

Capacity: 1164.0 ccm
Power: 120.0 HP (88.3 kW)
Torque: 112.0 Nm (11.4 kgf-m)
Engine type: In-line four
Power/weight ratio: 0.5381 HP/kg (dry)
Bore x stroke: 79.0 x 59.4 mm
Compression: 10.1:1
Cooling system: Liquid
Fuel system: Carburettor
Starting: Electric
Ignition: Digital with Kawasaki Throttle Responsive Ignition Control (K-TRIC)
Valves per cylinder: 4

Transmission

Gearbox: 5-speed
Transmission type: Manual
Final drive: Chain

Performance

Top speed: 230.0 km/h (142.9 mph)

Dimensions & weight

Wheelbase: 1465 mm
Overall width: 780 mm
Overall height: 1151 mm
Seat height: 790 mm
Dry weight: 223.0 kg
Fuel capacity: 19.00 litres
Ground clearance: 135 mm

Chassis & suspension

Frame: Double-cradle tubular steel
Front suspension: 43mm cartridge-type fork with preload adjustment and 12-way adjustable compression and rebound damping
Rear suspension: Braced swingarm with twin shocks, five-way adjustable preload and four-way adjustable compression and rebound damping
Front wheel travel: 120 mm
Rear wheel travel: 123 mm
Rake (fork angle): 25.0°

Brakes & wheels

Front brakes diameter: 315 mm
Rear brakes: Single disc
Rear brakes diameter: 250 mm
Front tyre: 120/70-ZR17
Rear tyre: 180/55-ZR17

Other

Color options: Green, Silver

Compiled from manufacturer documentation and user contributions, corrected on an ongoing basis. Spotted something wrong? Tell us.

What changed, year to year

Differences highlighted

Specification	2001	2002	2003	2004	2005
Capacity	1164 cc	1164 cc	1164 cc	1164 cc	1164 cc
Dry weight	227 kg	227 kg	223 kg	223 kg	223 kg
Seat height	790 mm	790 mm	790 mm	790 mm	790 mm
Fuel capacity	19 L	19 L	19 L	19 L	20.1 L