Ducati 55

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Ducati 55
Production 1955
Class Classic
Single cylinder, 4-stroke
Bore / Stroke 38.1mm x 38.1mm
Compression ratio 6.7:1
Horsepower 1.34 HP (1.0 KW) @ 5500RPM
Transmission Gear box: 2-Speed

Final Drive: Chain

Clutch: Wet Multi-plate
Suspension Front: Telescopic fork
Rear: Non-adjustable twin hydraulic shocks, swingarm
Brakes Front: Drum
Rear: Drum
Front Tire 2.00-18 CEAT
Rear Tire 2.00-18 CEAT
Wheelbase 42.91 inches (1090 mm)
Length 66.89 inches (1699 mm)
Seat Height 33.11 inches (841 mm)
Weight 47.0 kg (wet)
Manuals Service Manual

The Ducati 55 was a Single cylinder, 4-stroke Classic motorcycle produced by Ducati in 1955. Claimed horsepower was 1.34 HP (1.0 KW) @ 5500 RPM.


A 38.1mm bore x 38.1mm stroke result in a displacement of just 48.0 cubic centimeters.


The bike has a 2-Speed transmission. Power was moderated via the Wet Multi-plate.


It came with a 2.00-18 CEAT front tire and a 2.00-18 CEAT rear tire. Stopping was achieved via Drum in the front and a Drum in the rear. The front suspension was a Telescopic fork while the rear was equipped with a Non-adjustable twin hydraulic shocks, swingarm. The wheelbase was 42.91 inches (1090 mm) long.

1955 - 1957 Ducati 55[edit]

1955 - 1957 Ducati 55 1955 - 1957 Ducati 55 1955 - 1957 Ducati 55

Ducati 55 has the same 48cc engine, it had an uprated frame with leading link forks. 55E model variant had a rear suspension whilst the 55R was rigid.