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2021 Kawasaki KX250 XC Dirt Bike Review Specs

The new 2021 Kawasaki KX250 XC Dirt Bike features aggressive styling in-mold graphics, which makes it highly demanding and superficially racialized to finish in the upper display of its class. ۔ Slim Bodywork is designed to complement V-mounted policymakers and trim chassis. Next, with smooth surfaces that make it easier to move forward, each area of bodywork aims to help riders move and move.

The KX race machine championship-proven technology is now specially adjusted for off-road competition. With brand new 2021 KX250 XC and KX450 XC, Kawasaki is pleased to unveil the all-new race-ready off-road KX XC variant.

There is no denying that all new KX XC models are powered by technology that begins with the legacy of the Champions, as the brand has won over 25 titles in the last 20 years at WORCS, National Hare & Hound, GNCC, and Endurocross.

The KX250XC and KX450XC share many winning features with their Motocross counterparts, such as engine, frame, chassis, and styling. Still, they also have unique cross-country tuning and settings, such as suspension settings, gears, off-road A combination of 21 “/ 18” wheels, Dunlop Geomax AT81 tires, brake components, skid plate, and kickstand. The KX XC lineup’s mild suspension settings and low gearing ratio help provide the best handling off-road race package.

The KX XC lineup, designed to dominate off-road race courses in the jungle and desert, provides riders with factory-style features and excellent engine and chassis performance.

2021 Kawasaki KX250 XC Dirt Bike – Features and Specs

2021 Kawasaki KX250 XC Dirt Bike

Unique Key Features

  • Race-ready XC suspension with a powerful, high-powered 249cc engine
  • Off-road tires and F21 / R18 wheels
  • Side stand and skid plate
  • It starts with electricity.
  • Hydraulic clutch with cond disc spring
  • Start control mode.
  • Engine tuning is easy.
  • The process of finger follower valves
  • A frame of an aluminum frame that has industry-leading thinness.
  • Strong brakes
  • Slim, comfortable physical work

Special features of KX250XC 4-stroke engine

The bottom of the piston has the same bridged-box design as our factory racers. A light, strong piston is obtained from under a bridged-box with a short skirt, strong outer ribs, and fully flush inner braking.

Connecting rod design reduces lateral piston pressure on cylinder walls, minimizes mechanical damage and improves performance.

Simple bearings with low friction on the large end of the connecting rod help to increase the strength by reducing mechanical damage.

A 3mm forward cylinder reduces offset friction and allows more efficient power output, while the engine’s upright position helps to straighten the intake path. Dow draft intake fills the root cylinder more efficiently, increasing power.

The cylinder bore is a plateau to create a smooth surface that helps reduce mechanical damage.

Molybdenum coating on the outer surface of the piston reduces wear and reduces mechanical damage. Stratification helps retain oil and reduces sliding friction.

Semi-dry sump (KP) lubrication system for fast engine response. Aluminum cylinder with chrome composite plating (KP) offers better performance and efficient heat transfer for longer life, higher wear resistance, and excellent lubricating material. To keep extra oil away from the crankshaft and to prevent damage to the power-stealing movement, most of the oil is kept in the transmission.

Engine 4-valve cylinder head (KP) with race tuning

Engineers who won the Kawasaki Multimedia World Superbike Championship built the Finger Follower Valve Train, which allows for a high Rio range for aggressive cam profiles and excellent high RPM performance.

2021 Kawasaki KX250 XC Dirt Bike

Compared to tapite style operation, the finger-follower valve activation valve reduces the mass of the train (intake 3.5% lighter, exhaust 4.3% lighter) while also reducing friction in the cam lobe. Followers have a DLC (carbon-like a diamond) coating that helps prevent wear. For durability, aggressive camshaft lobes are coated with chromium nitride.

Dual injectors Kawasaki DFI® system

A large 44mm throttle body diameter allows ample airflow and enhances top-end performance.

The intake duct angle is optimized for a direct approach to the intake air, which improves the cylinder filling efficiency and contributes to the efficiency. The downstream injector is located at the bottom of the intake duct for quick throttle response. In contrast, the position and angle of the upstream injector match the design of the airbox to contribute to top-end performance.

Hydraulic Clutch with Cond Disc Spring

Kawasaki’s hydraulic clutch feels more upright and moves lighter. As the clutch heats up during more use, there is less play, resulting in a more permanent feeling. Instead of five coiled springs, the clutch uses single-coated disc springs for lighter clutch activation and a more extensive clutch engagement range, which helps the rider regulate the grip. The clutch lever action becomes much more delicate as the spring disc of the cond disc falls as soon as it enters the lever, which reduces the fatigue of the rider during off-road activities.

Electric Start

Powered by a lightweight, compact lithium-ion battery that helps keep weight to a minimum, it provides quick and easy push-button engine start-up. The exhaust cam’s automatic centrifugal compression release system raises an exhaust valve to make it easier to start. The simple design of the system is lightweight and reliable.

Note: To avoid fatal battery damage, use only a lithium-ion special battery charger.

DFI tuning is easy; DFI settings can be changed by changing the coupler on the right side of the steering stem. Riders can choose from three terrain settings: standard, hard and soft, depending on the situation.

2021 Kawasaki KX250 XC Dirt Bike

Additional skilled users who want to use the optional Kawasaki KX FI Calibration Kit have a better chance of tuning (hand-held).

2021 Kawasaki KX250 XC Dirt Bike – Price

The new 2021 Kawasaki KX250 XC Dirt Motorcycle is available at $8,399 only.

2021 Kawasaki KX250 XC Dirt Bike – Technical Specifications


Type 4-Stroke, DOHC, Liquid Cooled, 4-Valve, Solo
Displacement 249cc
Bore and Stroke 78 mm x 52.2 mm
Compression Ratios 14.1:1
Fuel System DFI with Keihin 44mm Throttle Body and Dual Injectors
Ignition Digital DC CDI
Transmission 5-Speed
Rake/Trail 27.8°/4.8 in.

Chassis, Suspension, and Brakes

Front Wheel Travel 12.4 in.
Rear Wheel Travel 12.4 in.
Front Tire Size 80/100-21
Rear Tire Size 110/100-18
Front Suspension 48mm Inverted, Coilspring Fork including Adjustable Compression and Rebound Damping
Rear Suspension Uni-Trak® with Adjustable Preload, Adjustable Dual-range (Low/High Speed)
Compression Damping, Adjustable Rebound Damping
Wheelbase 58.3 in.
Front Brake Type Semi-Floating 270mm Disc
Rear Brake Type 240mm Disc

2021 Kawasaki KX250 XC Dirt Bike

Dimension and Weight

Fuel Tank Capacity 1.64 gal.
Ground Clearance 13.0 in.
Seat Height 37.2 in.
Weight Without Fuel 230.2 lb.
Curb Weight 240.2 lb.

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