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Enduro Bikes

1999Aprilia ETX 125

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The 1999 Aprilia ETX 125 is a lightweight enduro bike designed for novice and amateur off-road riders seeking an accessible entry point into trail riding. Powered by a nimble 125cc two-stroke engine producing 12.2 horsepower, it excels in tight terrain with its compact wheelbase and generous suspension travel. The ETX 125 is best known for its fuel efficiency, handling characteristics, and affordability as a beginner-friendly adventure machine.

Capacity
125.0 ccm
Engine
Single, two-stroke
Gearbox
6-speed
Dry weight
115.0 kg
Seat height
890 mm
Power
12.2 HP (9.0 kW)

What’s new for the 1999 Aprilia ETX 125

vs the 1998
Spec19981999
Power 17.0 HP (12.5 kW) 12.2 HP (9.0 kW)
Top speed 130.0 km/h (80.8 mph) 98.0 km/h (60.9 mph)
Dry weight — 115.0 kg (253.5 pounds)
Wet weight 113.0 kg (249.1 pounds) 130.0 kg (286.6 pounds)
Rear brakes Expanding brake Single disc
Other years 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001

How it rides

Editorial estimate from the spec sheet - not lab tested
Speed 23Agility 76Comfort 40Off-road 72Touring 25Road manners 45
Off-road & trail72%
Cornering50%
City riding60%
Daily riding50%
Touring20%
Two-up20%
Track15%
Best for
Designed for light trail exploration, green-laning, and casual commuting rather than outright performance.
Built for
A nimble, low-powered enduro-styled machine that favors flickable handling and simplicity over outright speed.
Not ideal for
Not suited for riders wanting sustained highway speeds, long-distance touring comfort, or carrying a passenger any real distance.

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
At 890mm, a rider of 68.9" with a 31" (estimated) inseam will not reach the ground comfortably on the 1999 Aprilia ETX 125, with a cramped knee angle of around 80 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.

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Full specifications

Engine
Capacity
125.0 ccm
Power
12.2 HP (9.0 kW)
CO2 Emissions
14 CO2 g/km
Engine type
Single, two-stroke
Power/weight ratio
0.1061 HP/kg (dry)
Bore x stroke
54.0 x 54.0 mm
Compression
15.5:1
Cooling system
Liquid
Starting
Kick
Torque
Not on record - add it
Transmission
Gearbox
6-speed
Transmission type
Manual
Final drive
Chain
Performance
Top speed
98.0 km/h (60.9 mph)
Dimensions & weight
Wheelbase
1465 mm
Seat height
890 mm
Dry weight
115.0 kg
Wet weight
130.0 kg
Fuel capacity
10.00 litres
Front percentage of weight
44.6
Ground clearance
Not on record - add it
Chassis & suspension
Front wheel travel
267 mm
Rear wheel travel
290 mm
Brakes & wheels
Front brakes
Single disc
Front brakes diameter
250 mm
Rear brakes
Single disc
Rear brakes diameter
220 mm
Front tyre
2.75-21
Rear tyre
4.60-17

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 198719911994199819992001
Capacity 124 cc 124 cc 124 cc 124 cc 125 cc 125 cc
Dry weight — — — — 115 kg 115 kg
Seat height 890 mm 890 mm 890 mm 890 mm 890 mm 880 mm
Fuel capacity 10 L 10 L 10 L 10 L 10 L 12 L

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

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Common questions

What is the engine size of the Aprilia ETX 125?

The 1999 Aprilia ETX 125 has a Capacity of 125.0 ccm (7.63 cubic inches).

What engine power does the Aprilia ETX 125 have?

The 1999 Aprilia ETX 125 has a Power of 12.2 HP (9.0 kW).

How many gears does the Aprilia ETX 125 have?

The 1999 Aprilia ETX 125 has a Gearbox of 6-speed.

How much does the Aprilia ETX 125 weigh?

The 1999 Aprilia ETX 125 has a Dry weight of 115.0 kg (253.5 pounds).

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