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2021 Kawasaki KLX300SM Supermoto Review Specs Price

With its quick handling and large front brake rotor, the new 2021 Kawasaki KLX300SM Supermoto is a very lightweight supermoto bike that pulls a tight line at turns, while its wide street tires enhance performance.

In true supermoto style, the KLX300SM motorcycle brings joy to the roads. Inside, the playfulness emerges from a high-speed engine combined with light and agile handling. The suspension, wheels, and brakes are all designed for Supermoto, while the bodywork is KX-inspired. With equal parts behavior and performance, the Kawasaki 2021 KLX300SM is rapid to steal the show.

2021 Kawasaki KLX300SM Supermoto – Features and Specs

2021 Kawasaki KLX300SM Supermoto

Unique Key Features

  • Full digital instrumentation
  • Increased displacement produces more power and torque like other 250CC class machines in the same size package
  • Ultimate lightweight supermoto


Compact Liquid-Cooled Engine

The 6mm larger barrel, 250mm larger than the previous KLX250 model, improve displacement by up to 17% compared to traditional 250cc models for more power while maintaining a lighter weight and sophisticated feel.

11.1: 1 Compression ratio is obtained by a flat top piston with pantry off combustion chamber.

Lightweight pistons, piston pins, and connecting rods can achieve power-producing rpm without unnecessary vibration.

2021 Kawasaki KLX300SM Supermoto

Gear-driven engine balances ensure smooth power transmission across the power band, improving rider comfort on long rides.

Denso radiators with large capacities, such as the KX range, have high cooling efficiency. Radiators are smaller and lighter due to their compact profile and tightly packed cover, while the unique design of the art provides efficient heat dissipation.

Suspension Features

43mm of Inverted Cartridge Fork (KP)

Adjustable compression damping in 16 different ways

By reducing the oil in the fork, the cartridge maintains a more permanent damping force.

Rear suspension Uni-Trak® (KP)

The aluminum D-section swing arm is light and rigid, which reduces undivided weight.

The rear suspension linkage and damping settings give the vehicle a more robust ride and more roots in turn.

The brand new remote reservoir rear shock comes standard with the brand new nitrogen-filled aluminum body, 16-way rebound and compression damping control, and fully restyled threaded spring preload.

2021 Kawasaki KLX300SM Supermoto

Tires and wheels

The Kawasaki 2021 KLX300SM is equipped with 17-inch wheels and street tires.

2021 Kawasaki KLX300SM Supermoto – Price

The new 2021 Kawasaki KLX300SM Supermoto is available at $5,999 only.

2021 Kawasaki KLX300SM Supermoto – Technical Specifications


Type 4-Stroke, 4-Valve Single, Liquid-Cooled, DOHC
Displacement 292 cc
Bore & Stroke 78.0 x 61.2 mm
Compression Ratios 11.1:1
Ignition Digital DC-CDI
Fuel System DFI including 34mm throttle body
Transmission 6-Speed
Rake/Trail 25.0°/2.8 in.

2021 Kawasaki KLX300SM Supermoto


Front Wheel Travel 9.1 inches
Rear Wheel Travel 8.1 inches
Front Tire Size 110/70-17
Rear Tire Size 130/70-17
Front Suspension 43mm of Inverted Cartridge Fork including 16-Way Compression Damping Adjustment
Rear Suspension Uni-Trak including Adjustable Preload, 16-Way
Compression & Rebound Damping Adjustment
Wheelbase 56.5 in.
Front Brake Type 300mm Petal Disc
Rear Brake Type 240mm Petal Disc

2021 Kawasaki KLX300SM Supermoto


Fuel Tank Capacity 2 gallons
Ground Clearance 8.5 inches
Seat Height 33.9 in.
Curb Weight 304.03 lb.
Warranty 12 months
Kawasaki Protection+ 12, 24, 36 or 48-month

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