The Pegaso 125 was Aprilia's road-going enduro for learner-licence riders, built around the liquid-cooled Rotax 123 two-stroke borrowed from the…
| MODEL | APRILIA PEGASO 125 1989 - 1990 |
| Year | 1989 - 1990 |
| Engine Type | Rotax 123, two-stroke, single cylinder, reed valve intake |
| Displacement / Capacity | 124 cc / 7.6 cu in |
| Bore X Stroke | 54 x 54.5 mm |
| Compression Ratio | 14.0:1 |
| Cooling System | Liquid cooled |
| Max Power | 23 kW / 31 hp @ 10000 rpm |
| Max Torque | 22.5 Nm / 2.3 kgf-m / 16.6 ft-lb |
| Ignition | Electronic, variable advance |
| Induction | Dell'Orto PHBH 28 carburettor |
| Start System | — |
| TRANSMISSION SPECS | |
| Lubrication | Dry sump, external oil pump |
| Gear Box | 6 Speed |
| Clutch | Wet multi-plate, cable operated |
| Final Drive | Chain |
| CHASSIS SPECS | |
| Frame | Steel tubular frame |
| Front Suspension | 38 mm inverted telescopic fork |
| Rear Suspension | Single shock, preload adjustable, 220 mm / 8.7 in wheel travel |
| Front Brakes | Single 300 mm disc, 2 piston caliper |
| Rear Brakes | Single 220 mm disc, 1 piston caliper |
| DIMENSION SPECS | |
| Overall Length | 2070 mm |
| Overall Width | 850 mm |
| Overall Height | 1220 mm |
| Seat Height | 900 mm |
| Wheelbase | 1380 mm |
| Ground Clearance | 280 mm |
| Dry Weight | 118 kg / 260 lbs |
| Wet Weight | 140 kg |
| WHEEL SPECS | |
| Front Tyre | 100/90-19 |
| Rear Tyre | 120/80-17 |
| FUEL SYSTEM | |
| Fuel Capacity | 14 Litres / 3.7 US gal |
| Fuel Consumption | — |
| Top Speed | 159 km/h / 98.5 mph |
The Pegaso 125 was Aprilia's road-going enduro for learner-licence riders, built around the liquid-cooled Rotax 123 two-stroke borrowed from the Tuareg Wind. The first series of 1989 and the lightly revised 1990 bike (new colours, graphics and silencer) used a smaller 28 mm carburettor and a 38 mm upside-down fork, which set it apart from the later restyled models. It paired a tall 900 mm seat and long-travel suspension with a peaky, revvy engine more suited to quick road riding than serious off-road work.
