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Aprilia STX 125

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Make Model

Aprilia STX 125

Year

1985

Engine

Two stroke, single cylinder

Capacity

124cc / 7.6 cu in
Bore x Stroke 52.8 mm x 57mm
Compression Ratio 14.5:1
Cooling System Liquid cooled

Induction

26 Dell'Orto PHBH AS

Ignition

Electronic

Starting

Kick
Clutch Multi-disc oil bath

Max Power

15.7 kW / 21hp @ 8000 rpm

Transmission 

6 Speed 

Final Drive

Chain
Frame Double cradle tubular steel

Rake

26.5°

Trail

86 mm / 3.4 in

Front Suspension

Marzocchi Ø32 mm, non-adjustable

Rear Suspension

Swingarm with single shock absorber

Front Brakes

Single Ø240 mm disc

Rear Brakes

Single Ø230 mm disc

Front Tyre

100-90 -16

Rear Tyre

100-90 -18
Seat Height 800 mm / 31.5in

Dry Weight

104 kg / 229 lbs

Top Speed

135 km/h / 83.9 mph
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