The Aprilia AF1 125 Sintesi is a masterclass in Italian engineering and design. The bike’s stunning diagonal twin spar frame, crafted from lightweight aluminum, provides an unparalleled level of stiffness and agility.
Its robust front fork, boasting a compact 38mm diameter, is paired with a beautifully designed floating 320mm disc at the front, featuring a Brembo caliper with four pistons – a truly impressive setup for its era. The rear suspension, housed in a steel swingarm, provides progressive damping and ensures stable braking performance.
The AF1’s engine, the Rotax 123, is a marvel of innovation, boasting significant upgrades over its predecessor, the Rotax 127. Its new aluminum cylinder barrel, treated with Gilnisil, and improved head design enhance cooling efficiency, while the increased stroke and reduced compression ratio deliver substantial gains in low- and mid-range power. The result is an exhilarating riding experience that’s both thrilling and accessible.
With a wet weight of just 131kg, the Aprilia AF1 125 Sintesi is an absolute delight to handle, carving through corners with precision and poise. Its new MT 79 tires, mounted on beautiful 17″ wheels, grip the road with tenacity, while its potent engine unleashes a maximum output of 28.66hp at 10,500 rpm.
Key Specifications
Engine Type
Two stroke, single cylinder, light alloy, barrel with Gilnisil coating
Engine Capacity
124.7 cc / 7.6 cu in
Max Power
21.4 kw / 28.66 hp
Max Torque
18.6 Nm / 1.9 kgf-m / 13.7 lb-ft @ 10000 rpm
Fuel Tank Capacity
20 L / 5.3 US gal
Weight (Wet/Kerb)
289 lbs / 131 kg
Seat Height
31.5 inches / 800 mm
*n/a – information not provided by manufacturer
All Specifications
Make & Model
Model
Aprilia AF1 125 Sintesi
Year
1988
Engine
Engine Type
Two stroke, single cylinder, light alloy, barrel with Gilnisil coating
Displacement
124.7 cc / 7.6 cu in
Bore x Stroke
54 x 54.5 mm
Compression Ratio
15.1:1
Max Horsepower
21.4 kw / 28.66 hp
Max Torque
18.6 Nm / 1.9 kgf-m / 13.7 lb-ft @ 10000 rpm
Engine Management System
Dell’Orto carburetor, 28 mm
Cooling System
Liquid cooled
Performance
Top Speed
169.1 km/h / 103.3 mph
*n/a – information not provided by manufacturer
Transmission
Gearbox
6 Speed
Final Drive
Chain
Electrical & Electronics System
Starter
Electric
Chassis & Suspension
Front Suspension
Telescopic fork, 38 mm
Front Suspension Travel
4.7 inches / 120 mm
Rear Suspension
Aprilia progressive mono shock system, Sebach
Rear Suspension Travel
4.7 inches / 120 mm
Wheels & Brakes
Front Tire Size
100/80-17
Rear Tire Size
130/70-17
Front Brakes
Single 320 mm floating disc, 4 piston caliper, Brembo
Rear Brakes
Single 240mm disc, 2 piston caliper
Dimension & Weights
Seat Height
31.5 inches / 800 mm
Fuel Tank Capacity
20 L / 5.3 US gal
Wet (kerb/curb) Weight
289 lbs / 131 kg
Features
Diagonal twin spar aluminum frame
Smaller front fork with 38mm diameter
Non-adjustable front fork
Progressive rear suspension
Steel rear swingarm
Floating 320mm disc brake at the front
Brembo four-piston caliper at the front
240mm disc brake at the rear
Twin piston caliper at the rear
17″ Pirelli MT 79 tires
Rear tire size: 130/70-17
Front tire size: 100/80-17
Wet weight: 131kg
Rotax 123 engine
Aluminum cylinder barrel with Gilnisil treatment
Two-piece head for improved cooling
Increased stroke by 0.5mm
Reduced compression ratio to 15:1
Balancer shaft (absent on previous model)
RAVE 2 valves
Dell’Orto PHBH 28 RD oval section carburetor
Dynamic air intake with air box
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*We strive to provide the most comprehensive and accurate specifications possible. However, certain details may not be available if the manufacturer did not disclose them or if the information is no longer publicly accessible. If you find any discrepancy with any data on this site, please feel free to let us know at contact@throttlecraze.com
