The Kawasaki KLX450R motorcycle specifications include a 449 cc (27.40 cu in) engine, a 6-speed gearbox, and a listed weight of 126 kg (277.8 lb).
Key specifications
The 2012 model is treated as the standard specification. Only later model years with a different supplied value are shown below.
How the Kawasaki KLX450R compares
This compares the motorcycle with all Kawasaki models in this specifications database. The blue marker is this model and the grey line is the Kawasaki database average.
About 35% lower than the Kawasaki database average. Around the 34th percentile across Kawasaki models.
About 39% lighter than the Kawasaki database average. Around the 17th percentile across Kawasaki models.
About 17% taller than the Kawasaki database average. Around the 96th percentile across Kawasaki models.
About 48% smaller than the Kawasaki database average. Around the 17th percentile across Kawasaki models.
Dimensions compared with Kawasaki average
Each measurement is compared with the average value across Kawasaki models where that dimension is available.
2,175
2,122
Close to average.
820
833
Close to average.
1,250
1,175
6% above average.
1,480
1,441
Close to average.
935
801
17% above average.
315
187
69% above average.
Mechanical overview
Additional useful specifications
| Front tire size | 80/100-21 |
|---|---|
| Rear tire size | 120/90-18 |
| Front tire width | 80 mm |
| Front tire aspect ratio | 100% |
| Front rim diameter | 21 in |
| Rear tire width | 120 mm |
| Rear tire aspect ratio | 90% |
| Rear rim diameter | 18 in |
| Bore/stroke ratio | 1.55:1 (Oversquare) |
Engine specifications
| Engine type | Single cylinder, four-stroke |
|---|---|
| Displacement | 449 cc (27.40 cu in) |
| Bore × stroke | 96.0 x 62.1 mm (3.8 x 2.4 inches) |
| Compression ratio | 12.0:1 |
| Valves per cylinder | 4 |
| Cooling system | Liquid |
| Fuel system | Carburettor. Keihin FCR40 |
| Fuel control | Double Overhead Cams/Twin Cam (DOHC) |
| Ignition | Digital AC-CDI |
| Starter | Electric & kick |
| Lubrication | Forced lubrication, semi and #8209;dry sump |
Transmission and drivetrain
| Gearbox | 6-speed |
|---|---|
| Final drive | Chain (final drive) |
Chassis and suspension
| Frame | Perimeter, aluminium |
|---|---|
| Front suspension | 48 mm upside-down AOStype telescopic fork with |
| Rear suspension | Uni-Trak with 22-way low-speed, 2 turns or more high speed compression damping, 22 way rebound damping and adjustable spring preload |
| Front wheel travel | 305 mm (12.0 inches) |
| Rear wheel travel | 315 mm (12.4 inches) |
| Rake | 28.0° |
| Trail | 122 mm (4.8 inches) |
Brakes, wheels and tires
| Front brakes | Single disc. Semi-floating petal disc, dual piston caliper |
|---|---|
| Rear brakes | Single disc. Petal disc, single piston caliper |
| Front tire | 80/100-21 |
| Rear tire | 120/90-18 |
Dimensions and weight
| Wet weight | 126 kg (277.8 lb) |
|---|---|
| Seat height | 935 mm (36.8 inches) |
| Overall length | 2,175 mm (85.6 inches) |
| Overall width | 820 mm (32.3 inches) |
| Overall height | 1,250 mm (49.2 inches) |
| Wheelbase | 1,480 mm (58.3 inches) |
| Ground clearance | 315 mm (12.4 inches) |
Fuel and emissions
| Fuel capacity | 8.00 L (2.11 US gal) |
|---|
Other specifications
| Color options | Lime Green |
|---|
Disclaimer: Specifications may vary by market, trim, production date and optional equipment, and scraped or historical data can contain errors. Comparison and percentile values are calculated from Kawasaki models in this specifications database. Always double-check important specifications against the motorcycle owner’s/service manual and official Kawasaki information before relying on them. Visit the official Kawasaki website.