| MODEL | KAWASAKI KLX 450R 2012 |
| Year | 2012 |
| Engine Type | Four stroke, single cylinder, DOHC, four valves per cylinder |
| Displacement / Capacity | 449 cc / 27.3 cu in |
| Bore X Stroke | 96.0 x 62.1 mm |
| Compression Ratio | 12.0:1 |
| Cooling System | Liquid cooled |
| Max Power | 56.4 hp / 41.5 kW @ 8500 rpm |
| Max Torque | 50 Nm / 5.1 kg-m @ 7500 rpm |
| Ignition | Digital AC-CDI |
| Induction | 40 mm Keihin FCR flat-slide carburetor |
| Start System | Electric & kick |
| TRANSMISSION SPECS | |
| Lubrication | Forced, semi-dry sump |
| Gear Box | 5 speed |
| Clutch | — |
| Final Drive | Chain |
| CHASSIS SPECS | |
| Frame | Aluminum perimeter |
| Front Suspension | 48 mm inverted AOS-type cartridge fork, 22-way compression and 20-way rebound damping, 285 mm / 11.2 in travel |
| Rear Suspension | Uni-Trak single shock, 22-way low-speed and two-turn high-speed compression damping, 22-way rebound damping, 278 mm / 10.9 in travel |
| Front Brakes | Single 250 mm disc, two-piston caliper |
| Rear Brakes | Single 240 mm disc, one-piston caliper |
| DIMENSION SPECS | |
| Overall Length | 2180 mm / 85.8 in |
| Overall Width | 820 mm / 32.3 in |
| Overall Height | 1255 mm / 49.4 in |
| Seat Height | 940 mm / 37.0 in |
| Wheelbase | 1480 mm / 58.3 in |
| Ground Clearance | 320 mm / 12.6 in |
| Dry Weight | 115 kg / 253.5 lbs |
| Wet Weight | — |
| WHEEL SPECS | |
| Front Tyre | 80/100-21 |
| Rear Tyre | 110/100-18 |
| FUEL SYSTEM | |
| Fuel Capacity | 8 Litres / 2.1 US gal |
| Fuel Consumption | — |
| Top Speed | — |
The 2012 KLX 450R uses the KX450F motocrosser engine, retuned for stronger low- and mid-range power. The page highlights a heavier flywheel, multi-map ignition and a hot start lever alongside the electric starter and kick. It keeps the KX-derived aluminium frame, an 18-inch rear wheel, a larger 8-litre tank and standard side stand.
