Naked Motorcycles

2004Aprilia TUONO 125

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The 2004 Aprilia TUONO 125 is an agile sport naked bike designed for young riders and learners seeking genuine performance in an accessible package. Its lightweight frame and responsive single-cylinder engine deliver engaging handling and responsive power delivery. Best known for making 125cc sport riding accessible without compromising style or genuine capability.

Capacity: 124.8 ccm
Engine: Single
Gearbox: 6-speed
Dry weight: 129.0 kg
Seat height: 805 mm
Power: 15.0 HP (11.0 kW)

⇄ Compare with another bike All model years

Other years 2004 2005 2006 2017 2018 2019 2020 2021 2022 2023 2024 2025 2026

How it rides

Editorial estimate from the spec sheet - not lab tested

Off-road & trail10%

Cornering60%

City riding88%

Daily riding80%

Touring28%

Two-up25%

Track30%

Best for: Built for urban commuting and learner-friendly fun rather than outright performance or long-distance travel.
Built for: A playful, nimble naked bike that mimics its bigger Tuono siblings' aggressive styling while staying light, approachable, and efficient.
Not ideal for: Not suited for riders seeking highway touring comfort, two-up passenger trips, or serious speed and power.

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 805mm, a rider of 68.9" with a 31" (estimated) inseam will reach the ground with both feet flat on the 2004 Aprilia TUONO 125, with a relaxed knee angle of around 120 degrees and a forward-leaning 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 751-820 mm — Middle Ground →

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Full specifications

Engine

Capacity: 124.8 ccm
Power: 15.0 HP (11.0 kW)
Engine type: Single
Power/weight ratio: 0.1163 HP/kg
Bore x stroke: 54.0 x 54.5 mm
Compression: 12.5:1
Cooling system: Liquid
Fuel system: Carburettor
Starting: Electric
Torque: Not on record - add it

Transmission

Gearbox: 6-speed
Transmission type: Manual
Final drive: Chain

Dimensions & weight

Wheelbase: 1345 mm
Overall length: 1950 mm
Overall width: 720 mm
Overall height: 1350 mm
Seat height: 805 mm
Dry weight: 129.0 kg
Wet weight: 144.0 kg
Fuel capacity: 14.00 litres
Reserve fuel capacity: 3.50 litres

Chassis & suspension

Frame: Cast aluminium sloping twin-spar
Front suspension: Upside-down hydraulic action telescopic fork
Rear suspension: Cast aluminium swing-arm
Front wheel travel: 120 mm
Rear wheel travel: 120 mm

Brakes & wheels

Front brakes: Single disc
Front brakes diameter: 320 mm
Rear brakes: Single disc
Rear brakes diameter: 220 mm
Front tyre: 110/70-ZR17
Rear tyre: 150/60-ZR17

Other

Color options: Racing black, Tulip red

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	2004	2017	2020	2023	2026
Capacity	124.80 ccm (7.62 cubic inches)	124.80 ccm (7.62 cubic inches)	124.2 ccm (7.58 cubic inches)	124.2 ccm (7.58 cubic inches)	124.2 ccm (7.58 cubic inches)
Dry weight	—	—	—	129.0 kg (284.4 pounds)	129.0 kg (284.4 pounds)
Seat height	805 mm (31.7 inches)	820 mm (32.3 inches)	810 mm (31.9 inches)	810 mm (31.9 inches)	810 mm (31.9 inches)
Fuel capacity	14.00 litres (3.70 gallons)	14.00 litres (3.70 gallons)	14.50 litres (3.83 US gallons)	14.50 litres (3.83 US gallons)	14.50 litres (3.83 US gallons)
Color options	Racing black, Tulip red	Black/red	Black/Red	Arrow Grey, Lightning White, Aprilia Black	Arrow Grey, Lightning White, Aprilia Black, Eclipse Black, Rigel Blue