The KLX®300R is the ultimate high-performance off-road trail bike, bridging the gap between a weekend play bike and a full race-ready KX™ competition machine. As the leader of the KLX® lineup, the KLX300R combines the best of both engine and chassis performance to create the ultimate trail bike for off-road thrills. It is a lightweight, fun off-road machine that helps ensure that there is an affordable, capable, and durable motorcycle in the KLX® line-up for every rider in the family to get out and attack the trail.
The KLX300R is the ultimate high-performance trail bike for off-road thrills, bridging the world between a weekend play bike and a full race bike. As the leader of the KLX lineup, the KLX300R combines the best of both engine and chassis performance to create the ultimate lightweight, fun off-road machine.
A fan favorite, the Kawasaki KLX® family of off-road motorcycles are widely popular for their low maintenance, easy-to-ride character, and incredible capabilities while out on the trails. Completing the rest of the 2021 KLX family line up are five additional models, which consist of four engine configurations and are built to suit a variety of riders.
Recreational trail bike with high level of capability
Powerful petal disc brakes front and rear
ERGO-FIT® adjustability with 4-way handlebar positions
Full-size wheels
Hassle-free electric start
KX™-inspired styling and ergonomics
• FUEL-INJECTED, LIQUID COOLED FOUR-STROKE ENGINE WITH DOHC
• ELECTRIC START
• HIGH-TENSILE STEEL PERIMETER FRAME
• LONG TRAVEL SUSPENSION
• FULL-SIZE WHEELS
• KX™-INSPIRED STYLING AND ERGONOMICS
ENGINE
• Compact Liquid-Cooled Engine
• Flat top piston with pentroof combustion chamber delivers power-enhancing 11.1:1 compression ratio.
• Lightweight piston, piston pin and connecting rod allow power-producing revs without excessive vibration.
• Piston skirt designed to minimize contact with the cylinder wall and wide connecting rod big-end bearings enhance durability.
• Dual high-capacity radiators similar to those used on Kawasaki KX™ motocross machines provide excellent cooling efficiency. The slim radiators feature the same tightly-packed cores and fin design of the KX250
4-Valve DOHC Cylinder Head(KP)
Electric Starter
• Combined with DFI, starter button provides easy engine starting.
• Electric starter and the Kawasaki Automatic Compression Release (KACR)(KP), which automatically lifts an exhaust valve at cranking rpm, makes starting the KLX®300R easy.
Gear Driven Engine Balancer(KP)
• Engine runs smoothly from idle to redline.
• More rider comfort and less fatigue on long rides
Digital Capacitor Discharge Ignition (CDI)(KP)
• Digital ECU precisely controls timing, no matter how fast the RPM changes.
• Easy starts and reliability under extreme conditions.
U.S. Forest Service-Approved Spark Arrester
• U.S. Forest Service-approved spark arrester allows access to designated public riding areas.
ENGINE
• Six-Speed Transmission
• Six speeds provide a gear for varying situations.
• Short final gearing complements the engine’s low-mid range focus, making navigating tight trails easier.
• Smooth shifting for ease of use.
High Tensile Steel Perimeter Frame(KP)
• The frame is built up of box-section and tubular high-tensile steel.
• The 26.9° steering head angle and 56.5 inch wheelbase contribute to quick trail maneuverability.
• Optimized frame rigidity contributes to excellent straight line ability.
FRAME
• 43mm Inverted Cartridge Fork(KP)
• Fork settings utilize a softer spring rate to allow damping to work over a wider stroke range for better front-end feeling.
• 20-way compression damping adjustment.
• Cartridge maintains more consistent damping force by minimizing aeration of the fork oil.
Uni-Trak® Rear Suspension(KP)
• The nitrogen-filled, aluminum body, remote reservoir rear shock has 20-way compression and 18-way rebound damping adjustment and stepless threaded spring pre-load.
• Lightweight, extruded aluminum swingarm contributes to overall frame rigidity balance. D-shaped spars are attractive and KX-type chain adjusters facilitate maintenance.
Front and Rear Disc Brakes
• Twin piston front caliper grasps a 270mm front disc, the same size as that found on the KX250/450, for incredible stopping power.
• Single piston rear caliper and a 240mm disc to give strong, reliable performance.
SUSPENSION
• Also from the KX line, the upper triple clamp provides two mounting positions for the reversible handlebar clamps so that the handlebar can be set in one of four positions with a 35mm range of adjustment.
• Adjustable front brake lever position suits various hand sizes and preferences.
References
2021 Kawasaki KLX300R guide • Total motorcycle. (2020, July 29). Total Motorcycle. www.totalmotorcycle.com/motorcycles/2021/2021-kawasaki-klx300r