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Touring · 1988

650 GT

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MotoLibrary Score
48 /100 Balanced
Power
50 HP
Top Speed
144 km/h
Engine
643 ccm

1988 Moto Guzzi 650 GT Technical Analysis & Specification Breakdown

Engineered by Moto Guzzi for the touring motorcycle segment, the 1988 Moto Guzzi 650 GT features a 643 cc (39.2 cu in) air-cooled v2, four-stroke configuration. In factory specification, peak output is rated at 50 HP (36.5 kW) at 6,900 rpm, transferring power to the rear wheel through a 5-speed gearbox and shaft drive (cardan) final drive. With a specific output of 77.8 HP per liter, the engine character is indicating a tractable, stress-free state of tune focused on everyday usability and broad torque delivery.

On the scales, the 650 GT measures 199 kg (439 lbs) wet (curb), translating to a power-to-weight ratio of 0.25 HP/kg (3.98 kg per horsepower). The 17-liter (4.5 US gal) fuel tank supports practical everyday commuting and weekend road stints, while factory top speed is listed at 144 km/h (89 mph).

Within MotoLibrary's Moto Guzzi archive, this model family spans 2 indexed model years from 1988 to 1989, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.

Specific Output
77.8 HP/L
Power-to-Weight
0.25 HP/kg (3.98 kg/HP)
Engine
Displacement 643.0 ccm (39.24 cubic inches)
Engine Type V2, four-stroke
Engine Details V2, four-stroke
Power 50.0 HP (36.5 kW)) @ 6900 RPM
Compression 10.0:1
Bore x Stroke 80.0 x 64.0 mm (3.1 x 2.5 inches)
Valves/Cylinder 2
Fuel Control Overhead Valves (OHV)
Cooling Air
Transmission
Gearbox 5-speed
Final Drive Shaft drive (cardan) (final drive)
Performance
Top Speed 144.0 km/h (89.5 mph)
Wheels & Brakes
Front Tyre 100/90-18
Rear Tyre 110/90-18
Front Brakes Dual disc
Rear Brakes Single disc
Dimensions & Weight
Weight incl. 199.0 kg (438.7 pounds)
Fuel Capacity 17.00 litres (4.49 US gallons)
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Buying Checklist

Before You Compare This Bike

Use this page to compare this motorcycle by its real specifications, not only by model name. Focus on the details that affect fit, comfort, handling, range and ownership.

Power
Compare engine output with similar motorcycles if acceleration, highway use or two-up riding matters.
Fuel Capacity
Fuel capacity helps estimate touring range and how often you may need to stop.
Brakes
Brake setup is worth comparing if you ride in traffic, mountains or with a passenger.
Transmission
Transmission and final drive affect maintenance, smoothness and everyday usability.
Rider Profile

Who Is This Bike For?

🟡
Intermediate
Requires some riding experience.
🗺️
Best For
Long Distance Touring
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