Aprilia AS125R

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Aprilia-AS125R-1985--1.jpg
Aprilia AS125R
Manufacturer
Aprilia
Production 1985-86
Engine
Two stroke, single cylinder
Compression ratio 14.2:1
Top Speed 145 km/h / 90 mph
Ignition Electronic
Transmission 6 Speed
Frame Double cradle tubular steel
Suspension Front: Marzocchi Ø32 mm, non-adjustable
Rear: Swingarm with single shock absorber
Brakes Front: Single Ø 240 mm disc
Rear: Single Ø 230 mm disc
Front Tire 100-90 -16
Rear Tire 100-90 -18
Wheelbase 1365 mm / 53.7 in
Seat Height 800mm / 31.5 in
Weight 117 kg / 258 lbs (dry),
Manuals Service Manual


It could reach a top speed of 145 km/h / 90 mph.

Engine[edit]

The engine was a Liquid cooled cooled Two stroke, single cylinder. The engine featured a 14.2:1 compression ratio.

Drive[edit]

Power was moderated via the Multi-disc oil bath.

Chassis[edit]

It came with a 100-90 -16 front tire and a 100-90 -18 rear tire. Stopping was achieved via Single Ø 240 mm disc in the front and a Single Ø 230 mm disc in the rear. The front suspension was a Marzocchi Ø32 mm, non-adjustable while the rear was equipped with a Swingarm with single shock absorber. The bike weighed just 117 kg / 258 lbs. The wheelbase was 1365 mm / 53.7 in long.

Photos[edit]

Aprilia AS125R Aprilia AS125R Aprilia AS125R

Overview[edit]

Aprilia AS 125R







Presented in Gardone Riviera in May 1985 and sold soon after, the AS 125 R, where R indicates the presence of the new Austrian Rotax engine instead of the previous Hiro, is like his ancestor ST 125 of 1983.. The AS-R can indeed be called a slight evolution of the previous ST and STX models with regard to aesthetics and cycling, although the new Rotax engine is totally new. Characterized by the presence of the exhaust valve and RAVE (Regulation Aprilia Exhaust Valve), the modern engine Rotax 127 provides outstanding performance that transform the leadership of the AS-R, making it not only more robust but also more mature tha its ancestor STX. The AS-R is therefore a more powerful bike and most of STX fun to drive, though not as refined as the Honda NS-F is regarded a the best 125 of 1985.

Curiously enough for Aprilia, the AS-R proves long-lived enough to stay in production throughout 1986 without any special changes, just long enough for men of Aprilia to present the revolutionary Aprilia AF1 Project 108, 1987.

Price in 1985: Lire 3,430,000 turnkey.

Available colors: red / gray. (Other colors were available, but still to be confirmed)



Make Model Aprilia AS 125R
Year 1985-86
Engine Type Two stroke, single cylinder
Displacement 124 cc / 7.6 cu in
Bore X Stroke 54 mm x 54 mm
Compression 14.2:1
Cooling System Liquid cooled
Induction Dell'Orto PHBH AS Ø 26 mm carburetor
Ignition Electronic
Starting Electric and kick
Clutch Multi-disc oil bath
Max Power 19.4 kW / 26 hp @ 8500 rpm
Transmission 6 Speed
Final Drive Chain
Frame Double cradle tubular steel
Front Suspension Marzocchi Ø32 mm, non-adjustable
Rear Suspension Swingarm with single shock absorber
Front Brakes Single Ø 240 mm disc
Rear Brakes Single Ø 230 mm disc
Front Tire 100-90 -16
Rear Tire 100-90 -18
Wheelbase 1365 mm / 53.7 in
Seat Height 800mm / 31.5 in
Dry Weight 117 kg / 258 lbs
Top Speed 145 km/h / 90 mph


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