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2021 Kawasaki KLX300R Dirt Motorcycle Review Price Specs

The 2021 Kawasaki KLX300R Dirt Motorcycle is an ideal high-performance off-road trail bike, bridging the gap between a weekend toy and a complete KX competitive machine. The KLX300R, the flagship of the KLX® series, combines the best engine and chassis performance to create the best off-road trail bike. It is a lightweight, exciting off-road vehicle that helps ensure that every rider in the family can get out and the KLX® line can handle the trail thanks to affordable, capable and durable motorcycles.

The KLX300R is the ultimate off-road trail bike, bridging the gap between a weekend ride and a whole race bike. The Kawasaki KLX® line of off-road motorcycles is a favorite of fans due to their low maintenance, easy-riding nature, and excellent trial skills. Five additional models, consisting of four engine options designed for various riders, complete the 2021 KLX family lineup.

2021 Kawasaki KLX300R Dirt Motorcycle

2021 Kawasaki KLX300R Dirt Motorcycle – Features and Specs

Trail bike for fun with advanced capabilities

ERGO-FIT® flexibility of front and rear powerful petal disc brakes with 4-way handlebar positions. The bike has full-size edges and power off without effort & Inspired by the ergonomics and style of KX.

Four-stroke fuel injected, liquid-cooled engine with DOHC

The bikes start with an electric starter. It has a perimeter frame made of high tensile steel and suspension for long journeys. The motorcycle has complete wheel size & has ergonomics and styling inspiration from KX.


The bike has a liquid-cooled compact engine, 1 11.1: 1 compression ratio is provided by a flat top piston with a pantry off the combustion chamber. The lightweight piston, piston pin, and connecting rod enable high revolving power without producing unnecessary vibrations. A wide connecting rod with large end bearings and a piston skirt designed to minimize contact with the cylinder wall increases durability.

2021 Kawasaki KLX300R Dirt Motorcycle

Excellent cooling performance is provided by dual high-capacity radiators, as seen on Kawasaki KXTM motocross machines. KX250 4-Valve DOHC Cylinder Head Small Radiators Equally Closely Packed Cover and Art Design (KP).

The bike has increased low-end torque and provides maximum valve area for full flow. The bike is suitable for smaller heads with straight, more efficient ports, and a 38.5 ° valve angle is provided. The smooth, high-speed engine features cam profiles and intake port design. A cam lab with sham under taps for each valve has reduced mutual weight for high rpm performance.

The bike has a six-speed transmission; Six gears provide solutions for different situations. The low mid-range concentration of the engine is completed by short final gearing, which makes it easier to navigate the narrow lanes that is easy to work with smooth shifting.

Cylinder with Naxal plating (KP)

The solid finish of the aluminum cylinder bore allows more heat transfer while reducing weight.

The coating is resistant to lubrication, resists abrasion and corrosion, and allows rigid clearance from the piston to the cylinder, resulting in increased horsepower.

DFI® (KP) system by Kawasaki

The 34mm throttle body provides the engine’s correct response for better throttle control on narrow trails. The bike maintains a constant supply of fuel despite changes in air temperature or altitude helping to quickly start the engine hot or cold, as well as a cleaner exhaust. Creating the L KLX®300R is easy thanks to the electric starter and Kawasaki Automatic Compression Release (KACR) (KP) which automatically raises the exhaust valve at cranking rpm.

2021 Kawasaki KLX300R Dirt Motorcycle

The engine runs smoothly from idle to the red line, provides more comfort to riders and reduces fatigue on long rides. Digital Capacitor Discharge Ignition (CDI) (KP). No matter how fast the RPM fluctuates, the digital ECU manages the time perfectly. Easy start and reliable in difficult situations.US Forest Service Approved Spark Arrester; US Forest Service Approved Spark Arrest allows access to designated public ride locations.


The new 2021 Kawasaki KLX300R Dirt Motorcycle has a 43 mm inverted cartridge fork frame (KP). The bike has soft spring rates used in fork settings to allow damping to operate in a more effective stroke range for a better sense of front end, compression damping adjustment with 20 locations. By reducing the oil in the fork, the cartridge provides a more stable gaming force.

Uni-Trak® Rear Suspension (KP) Nitrogen-filled, aluminum body, remote reservoir rear shock provides 20-way compression and 18-way rebound damping adjustable, as well as stepless threaded spring preload. The DK-shaped spurs are attractive, and the KX-style chain adjusters make maintenance easy.

2021 Kawasaki KLX300R Dirt Motorcycle

2021 Kawasaki KLX300R Dirt Motorcycle – Price

An all-new 2021 Kawasaki KLX300R Dirt Motorcycle is available at $5,499 only.

2021 Kawasaki KLX300R Dirt Motorcycle – Technical Specifications


Type 4-Stroke, Liquid-Cooled, DOHC, 4-Valve Single
Displacement 292 cc
Bore & Stroke 78.0 x 61.2 mm
Compression Ratio 11.0:1
Fuel System DFI® with 34mm throttle body
Ignition Digital DC-CDI
Transmission 6-Speed
Rake/Trail 26.9°/4.3 in.

2021 Kawasaki KLX300R Dirt Motorcycle

Wheels, Suspension, and Brakes

Front Wheel Travel 11.2 in.
Rear Wheel Travel 11.2 in.
Front Tire Size 80/100-21
Rear Tire Size 100/100-18
Front Suspension 43mm Inverted Cartridge Fork including 16-Way Compression Damping Adjustment
Rear Suspension Uni-Trak with Adjustable Preload, Compression, and Rebound Damping Adjustment
Wheelbase 56.5 in.
Front Brake Type 270mm Petal Disc
Rear Brake Type 240mm Petal Disc

Dimension and Weight

Fuel Tank Capacity 2.1 gal.
Ground Clearance 12.0 / 11.8 (CA Model) in.
Seat Height 36.4 in.
Curb Weight 282.2 / 286.4 (CA Model) lb.

2021 Kawasaki KLX300R Dirt Motorcycle


Warranty Six months
Kawasaki Protection Plus 12, 24, or 36 months

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