Aprilia AS 125R

Make Model	Aprilia AS 125R
Year	1985-86
Engine	Two stroke, single cylinder
Capacity	124 cc / 7.6 cu in
Bore x Stroke	54 mm x 54 mm
Compression Ratio	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 Tyre	100-90 -16
Rear Tyre	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

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)