MV Agusta 350B

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MV Agusta 350B
MV Agusta 350B Sport motorcyclr (Stamford Museum).jpg
ManufacturerMV Agusta
Also calledMV Agusta 350 Bicilindrica
Production1970-1974
Successor MV Agusta 350 Ipotesi
Engine 349 cc (21 cu in) four-stroke parallel twin OHV
Bore / stroke 63 mm × 56 mm (2.5 in × 2.2 in)
Compression ratio 9.2:1
Top speed96 mph (154 km/h)
Power 27 hp (20 kW) @ 7600 rpm
Transmission Wet, multi-plate clutch, unit construction 5-speed gearbox, chain drive
Suspension Front: Teledraulic forks
Rear: swinging arm with hydraulic dampers
Brakes Front: 200 mm tls drum brake
Rear: 200 mm sls drum brake
Tires Front: 2.75 x 18
Rear: 3.25 x 18
Wheelbase 1330 mm
Weight149 kg (328 lb) (dry)
Footnotes /references
[1] [2]

The MV Agusta 350B (Bicilindrica) was a series of motorcycles produced by the Italian manufacturer MV Agusta from 1970 to 1974. The motorcycle was first introduced at the Milan motorcycle show in 1969. [1] The introduction of the "350" model was intended to bridge the production gap of MV Agusta in the medium-displacement sector and to take advantage of the prestige gained by the dominant GP racers. It was produced in "Sport", "Gran Turismo" and "Scrambler" versions. [3]

Contents

The series was replaced by the MV Agusta 350 Ipotesi in 1975. [4]

Technical details

The four-stroke parallel twin OHV engine was derived from the existing 250 twin cylinder, the bore being increased by 10 mm to 63 mm to give 349 cc displacement. Featuring alloy barrels and heads, the cylinders were inclined forward by 20 degrees. Two 24 mm Dell'Orto carburettor fed fuel to the engine, which had a compression ratio of 9.2:1. Lubrication employed a wet sump. Power output was 27 bhp (20 kW) @ 7,600 rpm. [1]

A geared primary drive took power to the wet, multi-plate clutch. The unit construction gearbox had 5 speeds, and final drive was by chain. [1] [5]

For the chassis, MV's usual single-beam frame in steel tube and sheet metal was used. Telescopic forks were used on the front, which because of the oil damping, were called "oleohydraulic forks" by MV. [6] Rear suspension was by swinging arm and twin shock absorbers. Brakes were drums front and rear and spoked wheels were fitted. [1]

In 1972 the machines were fitted with electronic ignition and had cosmetic changes. These models were designated "Elettronica". [7] [8]

Model variants

350B Sport

MV Agusta 350 Sport Elettronica with optional fairing fitted MV Agusta 350S Elettronica.jpg
MV Agusta 350 Sport Elettronica with optional fairing fitted

The 350B Sport was the most popular model of the range with its sporty appearance and agile handling. A racing tank and humped seat were fitted with "clip-on" handlebars. The machine was finished in red with chrome fork legs, side panels, mudguards and headlight. It retailed at 510,000 lira in Italy. [2]

In 1972 the updated 350 B Sport Elettronica was introduced. As well as electronic ignition, it gained a new petrol tank and larger side panels. A sports fairing (Carenatura) kit was available as an extra. 2,083 Sport Elettronica machines were produced. [9]

350B GT

MV Agusta 350B GT MV Agusta 3.jpg
MV Agusta 350B GT

A less sports styled version was also offered, the 350B GT, also known as the 350B Turismo. It had a larger tank, a more conventional seat and higher handlebars. Frame, forks, mudguards and headlight were painted black, various colours of tank were available. 300 machines were produced. [10]

Introduced in 1972, the MV Agusta 350B GT Elettronica had a new tank, larger side panels and electronic ignition. 646 machines of this variant were produced. [11]

350B Scrambler

Introduced in 1972, 350B Scrambler was an off-road "scrambler" styled machine. Using the Elettronica specification engine, the machine had high level exhaust pipes, raised handlebars and high front mudguards. The machine was aimed at the US market, but only 217 models were produced. [12]

350B Polizia Urbana

MV Agusta 350B Polizia Urbana MV Agusta 350 GT dx.jpg
MV Agusta 350B Polizia Urbana

Produced for Italian law enforcement agencies, a special version of the 350B GT, the 350B Polizia Urbana, was fitted with a single seat, a wind shield and panniers. [11] Optionally, crash bars, a siren and direction indicators could be fitted. [7]

1971 MV Agusta 350 (2C) Supersport MV Agusta Supersport 1971.jpg
1971 MV Agusta 350 (2C) Supersport

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References

  1. 1 2 3 4 5 "350B Twin". www.mvagustaoldtimers.nl (in Dutch). MVagusta-Oldtimers. Archived from the original on 24 April 2020. Retrieved 6 August 2019.
  2. 1 2 "350 B "Sport"" (PDF). www.glaagusta.org. Retrieved 6 August 2019.
    • Colombo, Mario; Patrignani, Roberto (2000). MV Agusta (in German) (Aufl ed.). Motorbuch-Verl. ISBN   978-3613014169.
  3. "350 Ipotesi". www.mvagustaoldtimers.nl (in Dutch). MVagusta-Oldtimers. Archived from the original on 24 April 2020. Retrieved 6 August 2019.
  4. "Classic MV Agusta - MV Agusta 350 Sport". thebikemuseum.com. The Bike Museum. Retrieved 6 August 2019.
  5. 1970 MV Agusta owners manual
  6. 1 2 "350 Twin Elettronica". www.mvagustaoldtimers.nl (in Dutch). MVagusta-Oldtimers. Archived from the original on 24 April 2020. Retrieved 6 August 2019.
  7. "MV Agusta 350 Bicilindrica Elettronica Sport". www.mv-agusta-club.de (in German). MV Agusta Club Deutschland. Retrieved 6 August 2019.
  8. "350 B "Sport Elettronica"" (PDF). www.glaagusta.org. Retrieved 6 August 2019.
  9. "350 B "Turismo"" (PDF). www.glaagusta.org. Retrieved 6 August 2019.
  10. 1 2 "350 B "Turismo Elettronica"" (PDF). www.glaagusta.org. Retrieved 6 August 2019.
  11. "350 B "Scrambler"" (PDF). www.glaagusta.org. Retrieved 6 August 2019.