Aprilia AF1 125 Project

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Aprilia AF1 125 Project
Production 1987
Class Sport Bike
liquid-cooled, two-stroke, single cylinder
Bore / Stroke 53.8mm x 53.8mm
Compression ratio 15.1:1
Horsepower 24.94 HP (18.6 KW) @ 10000RPM
Torque 13.28 ft/lbs (18.0 Nm) @ 8000RPM
Transmission Gear box: gear

Final Drive: chain

Clutch: wet multi-disc, manual
Suspension Front: telescopic fork
Rear: adjustable monoshock
Brakes Front: single 60mm disc, 4-piston caliper
Rear: single 240mm disc, 2-piston caliper
Front Tire 100/80-17
Rear Tire 130/70-17
Seat Height 31.5 inches (800 mm)
Weight 120.0 kg (wet)
Manuals Service Manual

The Aprilia AF1 125 Project was a liquid-cooled, two-stroke, single cylinder Sport Bike motorcycle produced by Aprilia in 1987. Max torque was 13.28 ft/lbs (18.0 Nm) @ 8000 RPM. Claimed horsepower was 24.94 HP (18.6 KW) @ 10000 RPM.

Engine[edit | edit source]

A 53.8mm bore x 53.8mm stroke result in a displacement of just 123.0 cubic centimeters.

Drive[edit | edit source]

The bike has a gear transmission. Power was moderated via the wet multi-disc, manual.

Chassis[edit | edit source]

It came with a 100/80-17 front tire and a 130/70-17 rear tire. Stopping was achieved via single 60mm disc, 4-piston caliper in the front and a single 240mm disc, 2-piston caliper in the rear. The front suspension was a telescopic fork while the rear was equipped with a adjustable monoshock.

1987 Aprilia AF1 125 Project[edit | edit source]

1987 Aprilia AF1 125 Project 1987 Aprilia AF1 125 Project

The 1987 MY Aprilia AF1 125 Project 108 has, at its heart, a liquid-cooled, two-stroke, 123cc, single cylinder engine paired to a six-speed manual transmission, and can produce a claimed 25 horsepower and 18 Nm of torque. It comes standard with an adjustable telescopic front fork, an adjustable rear monoshock, an aerodynamic full-fairing with a small windscreen, a dual seat and a race-inspired graphic scheme.