Sportbikes
2003Kawasaki ZX-12R Ninja
40 fields on record
The 2003 Kawasaki ZX-12R Ninja is a sport touring bike designed for experienced riders seeking high performance and long-distance capability. Known for its powerful 1199cc inline-four engine producing 175 horsepower, it combines aggressive styling with practical touring features. This bike excels for riders who demand both track-ready acceleration and comfortable highway cruising.
- Capacity
- 1199.0 ccm
- Engine
- In-line four
- Gearbox
- 6-speed
- Dry weight
- 213.0 kg
- Seat height
- 820 mm
- Power
- 175.7 HP (129.2 kW) @ 10500 RPM
What’s new for the 2003 Kawasaki ZX-12R Ninja
vs the 2002| Spec | 2002 | 2003 |
|---|---|---|
| Power | 178.0 HP (130.9 kW) @ 10500 RPM | 175.7 HP (129.2 kW) @ 10500 RPM |
| Fuel capacity | 19.50 litres (5.15 US gallons) | 19.00 litres (5.02 US gallons) |
| Front brakes | Dual disc | not listed |
How it rides
Editorial estimate from the spec sheet - not lab tested- Best for
- Built primarily as a hyperbike for high-speed sport riding with some long-distance capability, blending raw top-end performance with a touring-friendly chassis.
- Built for
- A brutally fast, in-line four sport-tourer that rewards bold, speed-loving riders who want serious power wrapped in a relatively stable, long-haul-capable frame.
- Not ideal for
- This is not the right bike for beginners, off-road enthusiasts, or riders seeking a light, nimble city commuter.
Scores are derived from the spec sheet using the same model across every bike, so they compare like for like.
Will it fit you?
Worked out in your browser - nothing is sent to usReliability & safety
Bike Reliability score, safety recalls and owner complaintsSafety recalls
⚠ 1 recall may applyELECTRICAL SYSTEM:ALTERNATOR/GENERATOR/REGULATORDec 2002 · 02V324000
ON CERTAIN 2000 ZX1200-A1/A1-L, 2001 ZX1200-A2/A2-L, AND 2002-2003 ZX1200-B1/B1-L MOTORCYCLES, OIL LEAKING FROM THE ALTERNATOR LEAD ELECTRICAL CONNECTOR CAN BE DEPOSITED ONTO THE REAR TIRE.
Risk: THIS CAN CREATE THE POTENTIAL FOR A LOSS OF TRACTION FOR BRAKING OR CORNERING, AND CAN LEAD TO A CRASH.
Remedy: DEALERS WILL SEAL THE ALTERNATOR LEAD WIRES. OWNER NOTIFICATION BEGAN BEGIN DECEMBER 16, 2002. OWNERS WHO TAKE THEIR VEHICLES TO AN AUTHORIZED DEALER ON AN AGREED UPON SERVICE DATE AND DO NOT RECEIVE THE FREE REMEDY WITHIN A REASONABLE TIME SHOULD CONTACT KAWASAKI AT 1-949-770-0400.
These recalls cover some 2003 bikes of this model. Whether one applies to a specific bike, and whether the repair has already been done, depends on its VIN — check your VIN with NHTSA, use gov.uk/check-vehicle-recall in the UK, or ask a dealer.
Source: NHTSA. View all Kawasaki recalls →
Bike Reliability
How the score works →77
out of 100Good
The 2003 Kawasaki ZX-12R Ninja passed its annual roadworthiness test first time 87.1% of the time, 6.2 points above expected for bikes of the same age and mileage. That beats 77% of models.
All years of this model: 73 / 100 (good) from 33,923 tests.
87.1%Passed first time
7.3%Failed outright
5.5%Fixed during test
17,000Typical miles
5,146Tests
Pass rate by miles ridden
All years of this model.
Score by year first registered
64
71
75
77
77
84
83
2000200120022003200420052006
Against its rivals · ranks 6 of 6
| # | Model (all years) | Score | Tests |
|---|---|---|---|
| 1 | BMW R 1150 RS | 97 Excellent | 189 |
| 2 | BMW R 1100 S | 94 Excellent | 8,337 |
| 3 | Yamaha FJR 1300 | 87 Excellent | 25,141 |
| 4 | BMW K 1200 RS | 85 Excellent | 2,808 |
| 5 | Honda CBR 1100 XX Super Blackbird | 83 Excellent | 111,528 |
| 6 | Kawasaki ZX-12R Ninja | 73 Good | 33,923 |
Rivals are the most-viewed bikes on MotorcycleDB in the same category and engine size, from within three years of this model.
From British annual roadworthiness tests, 2005-2025. Contains public sector information licensed under the Open Government Licence v3.0 (DVSA MOT test data, Great Britain). How Bike Reliability works.
Engine
- Capacity
- 1199.0 ccm
- Power
- 175.7 HP (129.2 kW) @ 10500 RPM
- Torque
- 134.1 Nm (13.7 kgf-m) @ 7500 RPM
- Engine type
- In-line four
- Power/weight ratio
- 0.8249 HP/kg (dry)
- Bore x stroke
- 83.0 x 55.4 mm
- Compression
- 12.2:1
- Cooling system
- Liquid
- Fuel system
- Injection
- Starting
- Electric
- Ignition
- Digital
- Valves per cylinder
- 4
Transmission
- Gearbox
- 6-speed
- Transmission type
- Manual
- Final drive
- Chain
Dimensions & weight
- Wheelbase
- 1450 mm
- Overall length
- 2120 mm
- Overall width
- 739 mm
- Overall height
- 1199 mm
- Seat height
- 820 mm
- Dry weight
- 213.0 kg
- Wet weight
- 245.0 kg
- Fuel capacity
- 19.00 litres
- Ground clearance
- 119 mm
Chassis & suspension
- Frame
- Aluminum monocoque
- Front suspension
- 43mm inverted hydraulic telescopic fork with adjustable compression and rebound damping, adjustable spring preload
- Rear suspension
- UNI-TRAK® system with single shock, adjustable compression and rebound damping, adjustable ride height, and adjustable preload
- Front wheel travel
- 43 mm
- Rear wheel travel
- 140 mm
- Rake (fork angle)
- 23.5°
- Trail
- 107 mm
Brakes & wheels
- Front brakes diameter
- 320 mm
- Rear brakes
- Single disc
- Rear brakes diameter
- 230 mm
- Front tyre
- 120/70-ZR17
- Rear tyre
- 200/50-ZR17
Maintenance
- Battery
- Yuasa: YTX14H-BS (12 V 12 Ah) or YTX14-BS (12 V 12 Ah)
- Spark plug
- NGK CR9EKPA
Other
- Color options
- Blue, Red, Green, Silver, Black
Specs last verified against published sources: .
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 |
|---|---|---|---|
| Capacity | 1199 cc | 1199 cc | 1199 cc |
| Dry weight | 215 kg | 214 kg | 213 kg |
| Seat height | 810 mm | 815 mm | 820 mm |
| Fuel capacity | 20 L | 19.5 L | 19 L |
| Bike Reliability ⓘ | 71 Good | 75 Good | 77 Good |
Illustrative - generated automatically by diffing the year records already on file, not a manufacturer-published changelog.
Rider Reviews
Common questions
What is the engine size of the Kawasaki ZX-12R Ninja?
The 2003 Kawasaki ZX-12R Ninja has a Capacity of 1199.0 ccm (73.17 cubic inches).
What engine power does the Kawasaki ZX-12R Ninja have?
The 2003 Kawasaki ZX-12R Ninja has a Power of 175.7 HP (129.2 kW) @ 10500 RPM.
How many gears does the Kawasaki ZX-12R Ninja have?
The 2003 Kawasaki ZX-12R Ninja has a Gearbox of 6-speed.
What is the torque of the Kawasaki ZX-12R Ninja?
The 2003 Kawasaki ZX-12R Ninja has a Torque of 134.1 Nm (13.7 kgf-m or 98.9 ft.lbs) @ 7500 RPM.
How much does the Kawasaki ZX-12R Ninja weigh?
The 2003 Kawasaki ZX-12R Ninja has a Dry weight of 213.0 kg (469.6 pounds).
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Same category, weighted similarity
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2005 Kawasaki Ninja ZX-12R
1199 cc · 210 kg · 820 mm
2003 Suzuki GSX1300R Hayabusa
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2003 Honda CBR 1100 XX Super Blackbird
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2004 Honda CBR 1100 XX Super Blackbird
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2001 Suzuki GSX1300R Hayabusa
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