Enduro Bikes
2021Kawasaki KLX 140R F
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The 2021 Kawasaki KLX 140R F is a lightweight enduro bike ideally suited for young riders and beginners seeking off-road adventure. Its air-cooled 144cc four-stroke engine delivers manageable power for learning fundamental riding skills, while the nimble chassis and low seat height make it accessible for smaller-framed riders exploring trails and dirt terrain.
- Capacity
- 144.0 ccm
- Engine
- Single, four-stroke
- Gearbox
- 5-speed
- Dry weight
- 93.0 kg
- Seat height
- 861 mm
- Power
- 14.1 HP (10.4 kW)
How it rides
Editorial estimate from the spec sheet - not lab tested- Best for
- Built for light trail riding, dirt paths, and recreational off-road exploration rather than speed or long-distance travel.
- Built for
- A nimble, forgiving, air-cooled single that prioritizes easy manageability and confidence-building off-road capability over outright performance.
- Not ideal for
- Not suitable for highway travel, two-up touring, or riders seeking strong acceleration and high top speed.
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 usEngine
- Capacity
- 144.0 ccm
- Power
- 14.1 HP (10.4 kW)
- Torque
- 12.0 Nm (1.2 kgf-m) @ 6000 RPM
- Engine type
- Single, four-stroke
- Power/weight ratio
- 0.1516 HP/kg (dry)
- Bore x stroke
- 58.0 x 54.4 mm
- Compression
- 9.5:1
- Cooling system
- Air
- Fuel system
- Carburettor
- Ignition
- Digital DC-CDI
- Lubrication system
- Forced lubrication, wet sump
Transmission
- Gearbox
- 5-speed
- Transmission type
- Manual
- Final drive
- Chain
- Clutch
- Multiplate, wet
Dimensions & weight
- Wheelbase
- 1285 mm
- Overall length
- 1996 mm
- Overall width
- 790 mm
- Overall height
- 1135 mm
- Seat height
- 861 mm
- Dry weight
- 93.0 kg
- Wet weight
- 99.0 kg
- Fuel capacity
- 5.70 litres
- Ground clearance
- 315 mm
Chassis & suspension
- Frame
- High-tensile steel, box-section perimeter
- Front suspension
- 33mm telescopic fork
- Rear suspension
- Uni-Trak® linkage system and single shock with piggyback reservoir, 20-way rebound damping and threaded preload adjustability
- Front wheel travel
- 191 mm
- Rear wheel travel
- 201 mm
- Rake (fork angle)
- 27.0°
- Trail
- 117 mm
Brakes & wheels
- Front brakes
- Single disc. Petal disc with a dual-piston caliper
- Front brakes diameter
- 220 mm
- Rear brakes
- Single disc. Petal disc with single-piston caliper
- Front tyre
- 70/100-21
- Rear tyre
- 90/100-18
Other
- Color options
- Lime Green
- Warranty
- 6
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 | 2021 | 2023 | 2024 | 2026 | 2027 |
|---|---|---|---|---|---|
| Capacity | 144 cc | 144 cc | 144 cc | 144 cc | 144 cc |
| Dry weight | 93 kg | 93 kg | 93 kg | 93 kg | 93 kg |
| Seat height | 861 mm | 861 mm | 861 mm | 860 mm | 860 mm |
| Fuel capacity | 5.7 L | 5.7 L | 5.7 L | 5.8 L | 5.8 L |
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 KLX 140R F?
The 2021 Kawasaki KLX 140R F has a Capacity of 144.0 ccm (8.79 cubic inches).
What engine power does the Kawasaki KLX 140R F have?
The 2021 Kawasaki KLX 140R F has a Power of 14.1 HP (10.4 kW).
How many gears does the Kawasaki KLX 140R F have?
The 2021 Kawasaki KLX 140R F has a Gearbox of 5-speed.
What is the torque of the Kawasaki KLX 140R F?
The 2021 Kawasaki KLX 140R F has a Torque of 12.0 Nm (1.2 kgf-m or 8.9 ft.lbs) @ 6000 RPM.
How much does the Kawasaki KLX 140R F weigh?
The 2021 Kawasaki KLX 140R F has a Dry weight of 93.0 kg (205.0 pounds).
Shop this bike
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The 2021 Kawasaki KLX 140R F is a versatile and fun off-road motorcycle that is perfect for riders of all skill levels. With its 144cc air-cooled, single-cylinder engine and five-speed transmission, this bike provides smooth and predictable power delivery, making it a great choice for beginners. The electric start and lightweight design make it easy to handle, while the adjustable suspension allows for a smooth ride over rough terrain. Whether you're hitting the trails or cruising through the woods, the KLX 140R F offers a comfortable and enjoyable riding experience.
Overall, the 2021 Kawasaki KLX 140R F is a fantastic option for anyone looking for a reliable and user-friendly off-road motorcycle. Its combination of power, agility, and comfort make it a great choice for riders who want to explore the great outdoors and take on new challenges. With its durable construction and high-quality components, this bike is built to last and will provide hours of fun for riders of all ages. Whether you're a beginner or a seasoned off-road enthusiast, the KLX 140R F is sure to impress with its performance and handling.
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