Aprilia AF1 125 Project 108 Replica


Make Model.

Aprilia AF1 125 Project 108 Replica




Two stroke, single cylinder, light alloy, barrel with Gilnisil coating


124.7 cc / 7.6 cu in
Bore x Stroke 54 x 54.5 mm
Compression Ratio 15.5:1
Cooling System Liquid cooled


Dell'Orto carburetor, 28 mm





Max Power

21.6 kW / 29 hp @10500 rpm

Max Torque

18.6 Nm / 1.9 kgf-m / 13.7 lb-ft @ 10000 rpm


6 Speed

Final Drive


Front Suspension

Telescopic fork, 40 mm, 4-way anti-drive adjustable

Front Wheel Travel

120 mm / 4.7 in

Rear Suspension

Aprilia progressive mono shock system

Rear Wheel Travel

120 mm / 4.7 in

Front Brakes

Single 320 mm disc, 4 piston caliper

Rear Brakes

Single 240mm disc, 2 piston caliper

Front Tyre


Rear Tyre


Seat Height

800 mm / 31.5 in

Dry Weight

120 kg / 265 lbs

Wet Weight

134.6 kg / 297 lbs

Fuel Capacity 

20 L / 5.3 US gal

Consumption Average

4.7 L/100 km / 21.5 km/l / 51 US mpg

Braking 60 km/h  / 37 mph - 0

13.3 m / 43.6 ft

Braking 100 km/h / 62 mph -  0

37.6 m / 123 ft

Standing Mile  

15.1 sec / 141.8 km/h / 88.1 mph

Top Speed

169.1 km/h / 105.1 mph
Colours Red/white

Presented at the Milan Show in 1987 and sold in December 1987 to celebrate that magical August 30, 1987 when Luca Reggiani Misano with an AF1 250 win the Grand Prix of San Marino, AF1 Replica Aprilia represents the first in the "transfer" from races to production. Interestingly, the AF1 Replica was made in bright colors not directly inspired by the racing colours.  And then it is certainly possible to classify the AF1 Replica not as a model in itself, but rather as a restyled version of the 1987 model.

Colors: Red / Black / White with saddle aquamarine and orange circles.

The bike

The AF1 Replica, although it is characterized by a much more vibrant color than its AF1 sister, is basically the same bike, elegant, sporty and well managed. The adoption of an aggressive dual light placed in a wider windshield, a redesigned fairing and larger tail and a removable seat cover, are the differences between the Replica and the AF1. The instrumentation, electrical controls and placement of accessories (fuel tank, battery, air filter, ect ..) remains the same as AF1.


The engine represents the latest evolution of the popular Rotax 127 and the Replica has slightly more thrust, although the only difference is in the positioning of transfers and the compression ratio is slightly higher (15,5:1 15,1:1 instead of the AF1). Also note the replacement of the rubber gasket RAVE valve with Viton, more resistant to temperatures and hydrocarbons.

The carburetor is the same as the AF1 and the same goes for the transmission and gear ratios. The specifications now indicate a maximum power to the rear wheel of 29.24 hp at 10,250 rpm instead of 27.88 at 10000 rpm of AF1.

Via 125stradali.com