2021 Kawasaki KX450 — 449 cc 4-Stroke Motocross Motorcycle

Description

The 2021 Kawasaki KX450 is a championship-proven motocross motorcycle engineered for serious racers and off-road enthusiasts. It features a powerful 449 cc liquid-cooled, 4-stroke single-cylinder engine paired with a 5-speed manual transmission, delivering outstanding power, smooth acceleration, and precise throttle response.

Equipped with electric start (12 V system) and a lightweight aluminum perimeter frame, the KX450 combines convenience and performance. The Showa 49 mm coil-spring front fork and Uni-Trak® rear suspension provide exceptional control, stability, and comfort on demanding motocross tracks.

Front and rear petal disc brakes offer strong, consistent stopping power, while the slim ergonomics, adjustable handlebar mounts, and flat seat design enhance rider comfort and maneuverability.

Key Specifications:

• Engine: 449 cc single-cylinder, 4-stroke, liquid-cooled

• Transmission: 5-speed manual / chain drive

• Starter: Electric start (12 V battery system)

• Frame: Aluminum perimeter frame

• Front Suspension: 49 mm Showa coil-spring fork, fully adjustable

• Rear Suspension: Uni-Trak® linkage system with Showa shock

• Front Brake: 270 mm petal disc

• Rear Brake: 250 mm petal disc

• Fuel Capacity: 6.2 liters (1.64 gallons)

• Seat Height: 955 mm (37.6 in)

• Curb Weight: Approx. 110 kg (243 lb)

• Color: Lime Green

Usage:

Designed for motocross and off-road competition use only. Not street legal.