Aermacchi two-stroke · 1965–1972
Aermacchi Harley-Davidson M-50 and M-65: history and buying advice
Small two-strokes for young riders.
History
After the Zeffiretto 48, Aermacchi built the M-50 for Harley-Davidson from 1965, the first two-stroke of that partnership, followed in 1966 by an M-50 Sport.
From 1967 came the M-65 (actually 64 cc), also as the M65S Leggero, until 1971. In 1972 the MC-65 Shortster arrived. Sales in America were disappointing, so good examples are rare today.
Key data
| Engine | Single-cylinder two-stroke |
|---|---|
| Capacity | 50 cc (M-50), 64 cc (M-65) |
| Power | c. 4.5 hp (M65S) |
| Gearbox | three speeds, wet clutch |
| Carburettor | Dell’Orto |
| Versions | M-50, M-50 Sport, M-65, M65S Leggero, Shortster |
What to check when buying
- Check that frame and engine belong together; many parts are shared with the Zeffiretto.
- Two-stroke: check the compression and the state of piston and cylinder.
- Original panels, tank and badges are hard to find.
- Watch for rust on the frame and mudguards.
- Moped or motorcycle registration? Check the papers for your country.