2009 Kawasaki KLX 450R vs 2009 Kawasaki KLX 450R vs 2008 Yamaha WR 450F

Full specifications comparison • 3 motorcycles

Comparing 3 motorcycles
2009 Kawasaki KLX 450R 2009 Kawasaki KLX 450R

Enduro / Off-Road

Engine
Single cylinder, four-stroke
Power
56.4 hp / 41.5 kW @ 8500 rpm
Top Speed
N/A
Weight
115 kg / 253.5 lbs
2009 Kawasaki KLX 450R 2009 Kawasaki KLX 450R

Enduro / Off-Road

Engine
Single cylinder, four-stroke
Power
N/A
Top Speed
N/A
Weight
992.1 pounds
2008 Yamaha WR 450F 2008 Yamaha WR 450F

Enduro / Off-Road

Engine
Four stroke, single cylinder, DOHC, 5 titanium valve per cylinder.
Power
58 hp / 42.3 kW @ 9000 rpm
Top Speed
N/A
Weight
122 kg / 268 lbs
Full Specifications
General
Year2008 - 092007 - 08
ColoursLime Green-
Make ModelKawasaki KLX 450RYamaha WR 450F
Dimensions
Ground Clearance (mm)320 mm-
Ground Clearance (in.)12.6 inches-
Seat Height940 mm / 37.0 in998 mm / 39.3 in
Wheelbase1480 mm / 58.3 in1485 mm / 58.5 in
Ground Clearance320 mm / 12.6 in365 mm / 14.3 in
Height1255 mm / 49.4 in1300 mm / 51.2 in
Length2180 mm / 85.8 in2175 mm / 85.6 in
Width820 mm / 32.3 in825 mm / 32.5 in
Weights & Capacities
Dry Weight115 kg / 253.5 lbs112.5 kg / 248 lbs
Fuel Capacity8 Litres / 2.1 US gal8 Liters / 2.1 US gal
Wet Weight-122 kg / 268 lbs
Performance
Max Power56.4 hp / 41.5 kW @ 8500 rpm58 hp / 42.3 kW @ 9000 rpm
Max Torque50 Nm / 5.1 kg-m @ 7500 rpm49 Nm / 33.1 lb-ft @ 7000 rpm
Engine
Fuel ControlDOHC-
Engine TypeSingle cylinder, four-stroke-
Displacement (ci)27.40 cubic inches-
Displacement (cc)449.00 cc-
Bore x Stroke (mm)96.0 x 62.1 mm-
Bore x Stroke (in,)3.8 x 2.4 inches-
Displacement449 cc / 27.3 cu-in449 cc / 27.4 in
Engine DetailFour stroke, single cylinder, DOHC, 4 valves per cylinderFour stroke, single cylinder, DOHC, 5 titanium valve per cylinder.
Fuel SystemCarburettor. Keihin FCR40-
Bore x Stroke96.0 x 62.1 mm95 x 63.4 mm
Compression Ratio12.0:112.5:1
Cooling SystemLiquid cooledLiquid cooled
Fuel InductionKeihin FCR39mm Keihin FCR flat-slide throttle position sensor
IgnitionDigital AC-CDIDigital CDI
LubricationForced lubrication, semi and #8209;dry sumpWet Sump
StarterElectric & kickElectric / Kick-starter
Valve System4-
Drivetrain
Clutch-Wet, multiple discs, cable operated
Final DriveChain"O" ring Chain
Gearbox5-speed-
Transmission / Drive5 Speed 5 Speed
Chassis
Frame TypeAluminum, perimeter designSteel, Single cradle frame
Suspension - Front48mm inverted AOS-type cartridge fork with 22-way compression damping and 20-way rebound damping46mm Kayaba inverted telescopic fork, compression and rebound damping adjustable
Suspension - RearUni-Trak® single shock system with 22-way low-speed, two-turn variable high-speed compression damping and 22-way rebound dampingFully adjustable Kayaba single shock, 315mm wheel travel, separate speed compression adjustment
Rake 27.1°-
Trail122 mm / 4.6 in-
Wheel Travel - Front285 mm / 11.2 in300 mm / 11.8 in
Wheel Travel - Rear278 mm / 10.9 in318 mm / 12.4 in
Wheels & Brakes
Brakes - Front Diameter (mm)250 mm-
Brakes - Rear Diameter (in.)9.4 inches-
Brakes - Rear Diameter (mm)240 mm-
Brakes - Front Diameter (in.)9.8 inches-
Brakes - FrontSingle 250mm disc 2 piston caliperSingle 250mm disc 4 piston caliper
Brakes - RearSingle 240mm disc 1 piston caliperSingle 245mm disc 2-piston caliper
Tyres - Front80/100-2180/100-21
Tyres - Rear110/100-18110/100-18

Verdict

Winner on specs

2009 Kawasaki KLX 450R

The 2009 Kawasaki KLX 450R edges out the 2009 Kawasaki KLX 450R thanks to its lighter kerb weight, greater ground clearance, higher rear wheel travel and higher front wheel travel. Specifications are one part of the picture - dealer support, parts availability, and intended use all matter too.

Key Differences

2009 Kawasaki KLX 450R - Advantages

  • Lower seat height: 940 mm vs 998 mm - accessible to a wider range of rider heights.

2009 Kawasaki KLX 450R - Advantages

  • Lighter: 122 kg vs 450 kg - easier to handle and less fatiguing on long trips.
  • More ground clearance: 365 mm vs 320 mm - better clearance over rocks and obstacles.
  • More rear wheel travel: 318 mm vs 278 mm - absorbs bigger hits and rough terrain better.
  • More front wheel travel: 300 mm vs 285 mm - greater compliance over rough surfaces.

2009 Kawasaki KLX 450R vs 2009 Kawasaki KLX 450R - FAQs

What are the engine differences between the 2009 Kawasaki KLX 450R and 2009 Kawasaki KLX 450R?
The 2009 Kawasaki KLX 450R uses Single cylinder, four-stroke, while the 2009 Kawasaki KLX 450R is powered by Four stroke, single cylinder, DOHC, 5 titanium valve per cylinder..
Which is lighter, the 2009 Kawasaki KLX 450R or the 2009 Kawasaki KLX 450R?
The 2009 Kawasaki KLX 450R is lighter at 122 kg compared to 450 kg for the 2009 Kawasaki KLX 450R - a difference of 328 kg. This is a meaningful difference that affects handling and rider fatigue.
Which bike is better for shorter riders, the 2009 Kawasaki KLX 450R or the 2009 Kawasaki KLX 450R?
The 2009 Kawasaki KLX 450R has the lower seat at 940 mm, making it more accessible. The 2009 Kawasaki KLX 450R sits higher at 998 mm. A seat height below 800 mm suits most riders; above 820 mm shorter riders may need to tiptoe.
Which should I buy, the 2009 Kawasaki KLX 450R or the 2009 Kawasaki KLX 450R?
Both are strong choices. The 2009 Kawasaki KLX 450R has the edge in lower seat height, while the 2009 Kawasaki KLX 450R stands out for lighter kerb weight and greater ground clearance. Visit dealers, arrange test rides, and factor in local parts and service costs - these often matter as much as the spec sheet.