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Enduro Bikes

1990Kawasaki KDX 125

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The 1990 Kawasaki KDX 125 is a Japanese enduro bike. It uses a 124cc liquid-cooled two-stroke single making 24 hp, driving through a 6-speed gearbox. It weighs 98 kg dry and has a 9-litre tank and a 950 mm seat.

Capacity: 124.0 ccm
Engine: Single, two-stroke
Gearbox: 6-speed
Dry weight: 98.0 kg
Seat height: 950 mm
Power: 24.0 HP (17.8 kW) @ 9600 RPM

⇄ Compare with another bike ＋ Add to garage All model years

Other years 1990 1991 1992

How it rides

Editorial estimate from the spec sheet - not lab tested

Off-road & trail90%

Cornering45%

City riding25%

Daily riding25%

Touring35%

Two-up15%

Track15%

Best for: Enduro/off-road bike built for its class - off-road and technical terrain.
Built for: An enduro/off-road bike from Kawasaki, built around a 124cc engine - a real production model, but this profile is formula-generated from its class and spec sheet rather than individually reviewed.
Not ideal for: Not for highway touring or pillion comfort.

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

Will it fit you?

Worked out in your browser - nothing is sent to us

Your height

Inseam (optional)

Units

At 950mm, a rider of 68.9" with a 31" (estimated) inseam will not reach the ground comfortably on the 1990 Kawasaki KDX 125, with a moderate knee angle of around 105 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 →

Find bikes that fit your height →

Reliability & safety

Bike Reliability score, safety recalls and owner complaints

Bike Reliability

How the score works →

out of 100Poor

The 1990 Kawasaki KDX 125 passed its annual roadworthiness test first time 61.3% of the time, 22.1 points below expected for bikes of the same age and mileage. That beats 5% of models.

All years of this model: 6 / 100 (poor) from 1,188 tests.

61.3%Passed first time

27.4%Failed outright

11.3%Fixed during test

15,000Typical miles

266Tests

Pass rate by miles ridden

0-10k

63.8%

10-20k

62.4%

20-30k

60%

30-40k

44.3%

40-50k

64.5%

All years of this model.

Score by year first registered

1990199119921993

Against its rivals · ranks 6 of 6

#	Model (all years)	Score	Tests
1	Aprilia ETX 125	10 Poor	264
2	Yamaha DT 125 R	9 Poor	14,594
3	Husqvarna WR125	9 Poor	933
4	Aprilia RX 125	7 Poor	1,629
5	Kawasaki KMX 125	6 Poor	9,209
6	Kawasaki KDX 125	6 Poor	1,188

Rivals are the most-viewed bikes on MotorcycleDB in the same category and engine size, from within three years of this model.

From British annual roadworthiness tests, 2005-2025. Contains public sector information licensed under the Open Government Licence v3.0 (DVSA MOT test data, Great Britain). How Bike Reliability works.

Full specifications

Engine

Capacity: 124.0 ccm
Power: 24.0 HP (17.8 kW) @ 9600 RPM
Engine type: Single, two-stroke
Power/weight ratio: 0.2449 HP/kg (dry)
Compression: 8.0:1
Cooling system: Liquid
Fuel system: Carburettor
Starting: Electric
Ignition: CDI
Torque: Not on record - add it

Transmission

Gearbox: 6-speed
Transmission type: Manual
Final drive: Chain
Clutch: Multi-disc clutch in oil bath

Performance

Top speed: 103.0 km/h (64.0 mph)

Dimensions & weight

Wheelbase: 1455 mm
Seat height: 950 mm
Dry weight: 98.0 kg
Fuel capacity: 9.00 litres
Ground clearance: 365 mm

Chassis & suspension

Front suspension: Kayaba 48mm telescopic hydraulic fork reversed KAYABA 48mm, double adjustment + adjustable spring preload, prepared
Rear suspension: Uni-Trak adjustable for preload
Front wheel travel: 300 mm
Rear wheel travel: 320 mm

Brakes & wheels