Cagiva SST and SXT

Cagiva · 1978–1986

Cagiva SST and SXT: history and buying advice

The two-strokes with which Cagiva began in the old Aermacchi factory.

Nederlandse versie

AMF Harley-Davidson SST 125, the forerunner of the Cagiva SST
AMF Harley-Davidson SST 125, the forerunner of the Cagiva SST. Photo: Wikimedia Commons, free licence; author and licence are on that page.

History

In 1978 the brothers Claudio and Gianfranco Castiglioni bought the AMF Harley-Davidson factory at Schiranna near Varese, the old Aermacchi factory. There they continued building the two-strokes Harley-Davidson had launched in 1975. The SST was the last AMF Harley-Davidson and the first Cagiva. Until 1980 it was called HD Cagiva, after that Cagiva. The SXT was the off-road version.

It was a simple naked bike with a two-stroke single, in 125, 175, 250 and from 1978 also 350 cc, with lines reminiscent of the Harley Sportster. The SST 125 sold best, as a first bike for sixteen-year-olds. In 1980 it got a front disc brake and a rev counter, in 1981 a dual seat and cast wheels, and in 1982 electronic ignition.

Key data

Engine1 cylinder two-stroke, reed valve inlet, air-cooled
Capacity123 cc (125), 243 cc (250), 342 cc (350)
VersionsSST (road), SXT (off-road), also Lowrider versions
Production125 and 250 until 1985, 350 until 1986

What to check when buying

  • Determine the year: disc brake and rev counter from 1980, cast wheels from 1981, electronic ignition from 1982.
  • They are two-strokes. Ask about the condition of piston and cylinder and do a compression test.
  • Check the reed block and the crankshaft seals; leaking seals cause an uneven idle.
  • An SXT has often been used off-road. Check the frame for cracks and distortion.
  • Many parts are the same as on the Harley-Davidson SS and SX, which makes searching easier.
  • Compare the frame and engine numbers with the papers.
To the workshop guide

SourcesCybermotorcycle: Cagiva SST (English)Wikipedia: Cagiva (English)

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