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2023 Kawasaki KX450X Off-Road Bike Review Specs

Kawasaki has a strong history in off-road racing. The 2023 Kawasaki KX450X Off-Road Biker retains the championship-winning performance and factory-style features of the KX450 motocross racer. Still, it adds 21/18-inch wheels with enduro-type tires and convenient standard features such as a side stand, skid plate, and Engine and suspension tuning explicitly designed for the X series.

Winning comes easy to the KX motorcycle family. Thanks to technologies developed by champions, the KX450X motorcycle is built to handle even the most severe terrain. Get the off-road edge with a bike built to outperform the competition.

2023 Kawasaki KX450X Off-Road Bike

The KX450X and its KX450 counterpart share many good qualities, including the Engine, frame, chassis, and look. Unique cross-country tuning and settings, including softer suspension settings, lower gearing, an off-road 21″/18″ wheel combination, Dunlop Geomax AT81 tires, brake components, a skid plate, and a kickstand, are added to that excellent foundation. The lower gear ratio and softer suspension settings help the race-ready off-road KX series achieve the optimum handling package.

2023 Kawasaki KX450X Off-Road Bike – Features and Specs

4-Stroke Engine

The 2023 Kawasaki KX450X Off-Road Bike’s high-performance Engine was painstakingly designed, which is evidence of Kawasaki’s dedication to producing exceptional power and economy. Because of its completely flush internal bracing and bridged-box bottom construction, the light piston helps to lower reciprocating weight and improve engine performance.

Also Read: Top Ten Best Dirt Bikes

The piston is more robust and weaker due to its short skirt and strengthened exterior ribs, providing longevity in rough-riding situations. Further enhancing performance is the dry film lubricant coating on the piston skirt, which reduces friction with the cylinder.

The 2023 Kawasaki KX450X Off-Road Bike has plain bearings at the connecting rod’s large end to maximize power production by minimizing mechanical loss and boosting power output. Smoother power delivery and less engine vibration are made possible by the wedge-shaped crank web with a balancing factor close to 60% and the 8.5mm forward cylinder offset. When the reaction is much snappier at low rpm, these traits are more visible, improving the rider’s control and pleasure.

2023 Kawasaki KX450X Off-Road Bike

To improve performance and longevity, the aluminum cylinder with chrome composite coating offers optimal lubricant retention, exceptional wear resistance, and quick heat transmission. By keeping most of the oil in the gearbox, the semi-dry-sump lubrication system lowers the center of gravity and improves engine responsiveness. This design prevents extra oil from reaching the crankshaft and reduces stirring power.

Race-Tuned 4-Valve Cylinder Head

With its finger-follower valve train, the race-tuned 4-valve Cylinder Head enables big valve diameters, aggressive cam profiles, and a high rev limit. Titanium valves lighten the load, while DLC coating on the followers reduces wear. With its long header pipe and resonator chamber, the Resonator Exhaust system efficiently lengthens the exhaust pipe, which lowers noise and adds to low-end solid power.

Coned Disc-spring Hydraulic Clutch

Coned disc-spring hydraulic clutches improve rider control and lessen strain during extended off-road events with light clutch actuation and broad engagement range. The Engine can start quickly and easily thanks to the electric start, powered by a lightweight lithium-ion battery. The Launch Control Mode helps riders achieve holeshots by optimizing traction, delaying ignition timing, and increasing the likelihood of a strong start. It is comparable to the mode used by Kawasaki’s factory racers.

2023 Kawasaki KX450X Off-Road Bike

Aluminum Perimeter Frame

The Engine is a stressed part in the aluminum perimeter frame, creating a balanced rigidity framework. With its cutting-edge features, the SHOWA 49mm Coil-Spring Fork with A-Kit Technology and Uni-Trak Rear Suspension offers excellent handling and suspension performance. Superior stopping power is guaranteed by the large brakes with petal discs, and rider comfort and mobility are improved by the thin, customizable ergonomics, which include wide footpegs and rider-friendly bodywork.

Also Read: Top Ten Best Dirt Bikes Under $1000

2023 Kawasaki KX450X Off-Road Bike – Price

The new 2023 Kawasaki KX450X Off-Road Bike is available at $9,799 only.

2023 Kawasaki KX450X Off-Road Bike

2023 Kawasaki KX450X Off-Road Bike – Technical Specifications


Engine 449cc, 4-stroke, liquid-cooled, DOHC 4-valve single
Bore x Stroke 96.0 mm x 62.1 mm
Compression Ratio 12.5:1
Fuel System Fuel injection: 44mm x 1
Ignition Digital DC-CDI
Starting Electric
Lubrication Forced lubrication, semi-dry sump
Transmission Five-speed, return
Clutch Wet multi-disc, manual
Final Drive Chain


Frame All-new Perimeter, aluminum
Front Suspension / Wheel Travel 49mm inverted fork including adjustable compression and rebound damping / 305mm (12 inches)
Rear Suspension / Wheel Travel New Uni Trak featuring adjustable dual-range (high/low-speed) compression damping, adjustable rebound damping, & adjustable spring preload / 307mm (12.1 inches)
Rake / Trail 27.6-degree / 120mm
Steering Angle (L/R) 42-degree / 42-degree
Front Tire 80/100-21 51M
Rear Tire 120/90-18 65M
Front Brakes Semi-floating 270mm petal disc including dual-piston caliper
Rear Brake ø240 mm petal disc with single-piston caliper

2023 Kawasaki KX450X Off-Road Bike


Dimensions (L x W x H) 2,185 mm x 820 mm x 1,265 mm (86.0 x 32.3 x 49.8 in)
Wheelbase 1,485 mm (58.5 in)
Road Clearance 335 mm (13.2 in)
Seat Height 950 mm (37.4 in)
Curb Mass 111.6 kg (246 lb)
Mass Without Fuel 107.0 kg (236 lb)
Fuel Capacity 6.2 litres


To sum up, the 2023 Kawasaki KX450X Off-Road Bike is an engineering wonder that combines state-of-the-art technology and meticulous design to produce a dirt bike that excels in durability, performance, and rider comfort. Every element, from the sophisticated suspension system to the race-tuned Engine, is painstakingly designed to provide a thrilling and responsive off-road experience. Whether tearing through rugged terrain or going all out for the holeshot, the 2023 Kawasaki KX450X proves Kawasaki’s commitment to pushing the limits of dirt bike innovation.

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