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Sport · 1992

AF1 125 Sport Pro

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MotoLibrary Score
43 /100 Commuter
Power
25 HP
Top Speed
156 km/h
Engine
125 ccm

1992 Aprilia AF1 125 Sport Pro Technical Analysis & Specification Breakdown

At the heart of the 1992 Aprilia AF1 125 Sport Pro sport motorcycle, Aprilia features a 125 cc (7.6 cu in) liquid-cooled single cylinder, two-stroke configuration. In factory specification, peak output is rated at 25 HP (18.2 kW) at 10,000 rpm, transferring power to the rear wheel through a 6-speed gearbox and chain final drive. With a specific output of 200 HP per liter, the engine character is placing it firmly in high-revving supersport territory where top-end breathing dominates.

On the scales, the AF1 125 Sport Pro measures 140 kg (309 lbs) wet (curb), translating to a power-to-weight ratio of 0.18 HP/kg (5.6 kg per horsepower). The 16-liter (4.2 US gal) fuel tank supports practical everyday commuting and weekend road stints, while factory top speed is listed at 156 km/h (97 mph).

Specific Output
200 HP/L
Power-to-Weight
0.18 HP/kg (5.6 kg/HP)
Engine
Displacement 125.0 ccm (7.63 cubic inches)
Engine Type Single cylinder, two-stroke
Engine Details Single cylinder, two-stroke
Power 25.0 HP (18.2 kW)) @ 10000 RPM
Compression 15.0:1
Bore x Stroke 54.0 x 54.5 mm (2.1 x 2.1 inches)
Fuel Control Membrane & variable discharge openings
Cooling Liquid
Transmission
Gearbox 6-speed
Final Drive Chain (final drive)
Performance
Top Speed 156.0 km/h (96.9 mph)
Wheels & Brakes
Front Tyre 110/70-17
Rear Tyre 140/70-17
Front Brakes Single disc
Rear Brakes Single disc
Dimensions & Weight
Weight incl. 140.0 kg (308.6 pounds)
Fuel Capacity 16.00 litres (4.23 US gallons)
More from Aprilia
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Power
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Fuel Capacity
Fuel capacity helps estimate touring range and how often you may need to stop.
Brakes
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Transmission
Transmission and final drive affect maintenance, smoothness and everyday usability.
Rider Profile

Who Is This Bike For?

🟢
Beginner
A2 license compatible, manageable power.
🏁
Best For
Sport & Track
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