Today in Motorcycle History

MV Agusta 175 CSS-5V 1956


Engine: Single cylinder four-stroke OHV

Bore & stroke: 59.5 x 62 mm

Compression ratio: 9:1

Maximum power: 15 h.p. @ 8,800 rpm

Engine Capacity: 172.3cc

Distribution: Single overhead cam (OHV) with timing chain

Ignition: Flywheel-magneto, 6V-40W

Carburettor: Dell'Orto 25.2 mm

Cooling system: Air cooled

Lubrication: Wet sump forced circulation with mechanical gear pump

Transmission: Gear primary, chain final

Clutch: Cable operated with multiple wet disc in oil bath

Gearbox: 5-Speed foot-change with chain drive

Starter: Kick-starter

Throttle: Cable operated

Frame type: Double cradle tubular and pressed steel

Front Suspension: Telescopic fork and shock absorbers

Rear Suspension: Swingarm with hydraulic shock absorbers

Front Brake: Drum Ø 180 mm

Rear Brake: Drum Ø 150 mm

Wheelbase: 1,280 mm

Front Tyre: 2.75 x 21"

Rear Tyre: 2.75 x 21"

Seat: sprung solo saddle

Fuel tank capacity: 20 litre3(5.28 gallon)

Top speed: 135 km/h (84 mph)

Weight: 95 Kg (209.4 lb)

Production: 6 units

MV AGUSTA produced the 175 'CSS-5V Regolarità Monoalbero' between 1954 and 1956.

Initially fitted with the 175cc CSS engine, they replaced it in 1955 with the model 175 CSS-5V. The frame is the series "CSS" with a modified closed cradle, telescopic front fork and raised exhaust system. MV AGUSTA produced the '175 CSS-5V Regolarità Monoalbero' exclusively for the official MV Regolarità team. It is considered one of the most attractive MV machines ever built.

Between 1954 and 1956, MV AGUSTA achieved 17 wins in total with the 175 Regolarità - MV rider M. Fornasari won a Gold Medal on his 175 CSS-5V during the International Six Days Trial (ISDT), and the MV Agusta Team achieved 7 victories.

The MV AGUSTA 175 'CSS-5V Regolarità Monoalbero' was never available on the open market. Between 1954 and 1956, only six of these machines were built, exclusively for the MV Regolarità ('Regolaristi') team. As far as we know, only two have survived. The finest of these is owned by the Amsterdam Italian Motor Museum, is in a beautiful condition and is almost original.

These machines occasionally changed hands between private collectors in the past and as far is known this is the first time an MV AGUSTA 175 "CSS-5V Regolarità Monoalbero" will be sold at a public auction.

Adapted from a piece by Hessink's NL