1990Kawasaki KX250

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The 1990 Kawasaki KX 250 is a lightweight motocross machine built for competitive riders and enthusiasts seeking a nimble, responsive 2-stroke performer. Its liquid-cooled 249cc engine delivers strong low-to-mid range power ideal for technical terrain and racing. Known for its aggressive handling and high-revving character, the KX 250 remains a popular choice for serious motocross competition.

Capacity: 249.0 ccm
Engine: Single, four-stroke
Gearbox: 5-speed
Dry weight: 96.5 kg
Seat height: 960 mm
Power: 52.5 HP (38.6 kW)

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Other years 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2019 2020 2021 2022 2023 2024 2025 2026 2027

How it rides

Editorial estimate from the spec sheet - not lab tested

Off-road & trail98%

Cornering85%

City riding10%

Daily riding10%

Touring8%

Two-up0%

Track90%

Best for: Built purely for closed-course motocross racing and aggressive off-road riding, not for street use or transportation.
Built for: A light, high-revving, aggressive machine that rewards an active, attacking riding style with explosive acceleration out of corners and razor-sharp handling.
Not ideal for: Not suitable for commuting, touring, carrying passengers, or riders seeking comfort and low-maintenance street usability.

Scores are derived from the spec sheet using the same model across every bike, so they compare like for like.

Will it fit you?

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Your height

Inseam (optional)

Units

At 960mm, a rider of 175cm with a 79cm (estimated) inseam will not reach the ground comfortably on the 1990 Kawasaki KX250, with a cramped knee angle of around 85 degrees and an upright riding position.

Assumes about 30mm of suspension sag once seated. This is an approximation from category-typical geometry, not a measurement of this bike or of you - sit on one before you buy.

More bikes at over 900 mm — Sky High →

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Full specifications

Engine

Capacity: 249.0 ccm
Power: 52.5 HP (38.6 kW)
Torque: 47.5 Nm (4.8 kgf-m)
Engine type: Single, four-stroke
Power/weight ratio: 0.5440 HP/kg (dry)
Bore x stroke: 67.4 x 70.0 mm
Compression: 10.5:1
Cooling system: Liquid
Fuel system: Carburettor
Starting: Kick
Ignition: CDI
Valves per cylinder: 4

Transmission

Gearbox: 5-speed
Transmission type: Manual
Final drive: Chain

Dimensions & weight

Wheelbase: 1480 mm
Overall length: 2177 mm
Overall width: 815 mm
Overall height: 1215 mm
Seat height: 960 mm
Dry weight: 96.5 kg
Fuel capacity: 8.50 litres
Ground clearance: 385 mm

Chassis & suspension

Frame: Perimeter style, high-tensile steel with aluminum subframe
Front suspension: Inverted Forks
Rear suspension: Monoshock
Front wheel travel: 310 mm
Rear wheel travel: 330 mm
Rake (fork angle): 26.5°
Trail: 113 mm

Brakes & wheels

Front brakes: Single disc
Front brakes diameter: 220 mm
Rear brakes: Single disc
Rear brakes diameter: 190 mm
Front tyre: 80/100-21 51
Rear tyre: 110/90-19 62

Compiled from manufacturer documentation and user contributions, corrected on an ongoing basis. Spotted something wrong? Tell us.

What changed, year to year

Differences highlighted

Specification	1990	1997	2004	2020	2027
Capacity	249 cc	249 cc	249 cc	249 cc	249 cc
Dry weight	97 kg	97 kg	97 kg	100 kg	105 kg
Seat height	960 mm	963 mm	963 mm	947 mm	955 mm
Fuel capacity	8.5 L	8.5 L	8.4 L	6.4 L	6.2 L

Illustrative - generated automatically by diffing the year records already on file, not a manufacturer-published changelog.

Rider Reviews

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MotorcycleDB Review

The 1990 Kawasaki KX 250 is a powerful and reliable dirt bike that has stood the test of time. With its strong engine and durable frame, it's no wonder that this bike is still highly sought after by motocross enthusiasts. The smooth handling and responsive suspension make it a joy to ride on the track or trails, and its overall performance continues to impress riders decades after its release.

One of the standout features of the 1990 Kawasaki KX 250 is its exceptional power delivery, which allows for quick acceleration and impressive top speed. The bike's sturdy construction and well-designed components make it a reliable choice for riders of all skill levels. With its timeless design and outstanding performance, the 1990 Kawasaki KX 250 remains a standout choice for motocross riders looking for a vintage bike that can still compete with modern models.