Aprilia AF1 125 (1987)

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The Aprilia AF1 125 Project 108 motorcycle, produced in 1987, features a liquid-cooled, two-stroke single cylinder engine with a capacity of 123cc and a compression ratio of 15.5:1. It has a Dell’Orto carburetor with a 28mm induction system and is electrically started. The bike offers a maximum power of 18.7 kW / 25.1 hp at 10000 rpm and a maximum torque of 17.7 Nm / 1.8 kgf-m / 13.1 lb-ft at 8000 rpm. A six-speed transmission with a chain as the final drive is included. The front suspension comprises of a telescopic fork with four-way anti-drive adjustability while the rear suspension features a Sebac mono-shock absorber. Both the front and rear brakes are single-disc, measuring 260 mm and 240 mm respectively. The front and rear tyres are 100/80-16 and 120/80-16, respectively. The dry weight of the motorcycle is 120 kg, while wet weight is 134.6 kg. Its fuel capacity is 22.5 L / 5.9 US gal and offers an average consumption of 4.4 L/100 km / 22.7 km/l / 53 US mpg.

Technical specifications:

Make Model: Aprilia AF1 125 Project 108

Year: 1987


Engine: Two stroke, single cylinder
Capacity: 123 cc / 7.5 cu in
Bore x Stroke: 54 x 54.5 mm
Compression Ratio: 15.5:1
Cooling System: Liquid cooled
Induction: Dell’Orto carburetor, 28 mm
Starting: Electric
Max Power: 18.7 kW / 25.1 hp @10000 rpm
Max Torque: 17.7 Nm / 1.8 kgf-m / 13.1 lb-ft @ 8000 rpm
Transmission: 6 Speed
Final Drive: Chain
Front Suspension: Telescopic fork, 4-way anti-drive adjustable
Rear Suspension: Sebac mono shock
Front Brakes: Single 260 mm disc
Rear Brakes: Single 240mm disc

Front Tyre: 100/80-16
Rear Tyre: 120/80-16
Dry Weight: 120 kg / 265 lbs
Wet Weight: 134.6 kg / 297 lbs
Fuel Capacity: 22.5 L / 5.9 US gal
Consumption Average: 4.4 L/100 km / 22.7 km/l / 53 US mpg

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