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Sport · 1978

850 Magni

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MotoLibrary Score
55 /100 Balanced
Power/Weight
0.55 hp/kg
Engine
837 ccm

1978 MV Agusta 850 Magni Technical Analysis & Specification Breakdown

Engineered by MV Agusta for the sport motorcycle segment, the 1978 MV Agusta 850 Magni relies on a 837 cc (51.1 cu in) air-cooled in-line four, four-stroke powerplant. In factory specification, peak output is rated at 110 HP (80.3 kW) at 9,000 rpm. With a specific output of 131.4 HP per liter, the engine character is reflecting a performance-oriented street tune that balances strong mid-range pull with an energetic top-end rush.

On the scales, the 850 Magni measures 200 kg (441 lbs) dry, translating to a power-to-weight ratio of 0.55 HP/kg (1.82 kg per horsepower). The 18.9-liter (5 US gal) fuel tank supports practical everyday commuting and weekend road stints.

Within MotoLibrary's MV Agusta archive, this model family spans 2 indexed model years from 1978 to 1979, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.

Specific Output
131.4 HP/L
Power-to-Weight
0.55 HP/kg (1.82 kg/HP)
Engine
Displacement 837.0 ccm (51.07 cubic inches)
Engine Type In-line four, four-stroke
Power 110.0 HP (80.3 kW)) @ 9000 RPM
Compression 10.3:1
Bore x Stroke 68.6 x 55.9 mm (2.7 x 2.2 inches)
Fuel System Carburettor. Dell´Orto
Fuel Control Double Overhead Cams/Twin Cam (DOHC)
Cooling Air
Chassis
Frame Type Steel
Front Suspension Telescopic, Forcelle
Rear Suspension Dual Koni Shocks Preload Adjustable
Wheels & Brakes
Front Tyre 110/80-18
Rear Tyre 150/70-18
Front Brakes Double disc
Front Brake Ø 280 mm (11.0 inches)
Rear Brakes Double disc
Rear Brake Ø 280 mm (11.0 inches)
Dimensions & Weight
Dry Weight 200.0 kg (440.9 pounds)
Power/Weight 0.5498 HP/kg
Fuel Capacity 18.90 litres (4.99 US gallons)
Other
Color Options Red
More from MV Agusta
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