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Enduro - Offroad · 1987

R 80 GS

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MotoLibrary Score
51 /100 Balanced
Power
50 HP
Top Speed
173 km/h
Engine
797 ccm

1987 BMW R 80 GS Technical Analysis & Specification Breakdown

Positioned in BMW's enduro - offroad motorcycle lineup, the 1987 BMW R 80 GS features a 797 cc (48.6 cu in) air-cooled two cylinder boxer, four-stroke configuration. In factory specification, peak output is rated at 50 HP (36.5 kW) at 6,500 rpm, transferring power to the rear wheel through a 5-speed gearbox and shaft drive (cardan) final drive. With a specific output of 62.7 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 R 80 GS measures 196 kg (432 lbs) wet (curb), translating to a power-to-weight ratio of 0.26 HP/kg (3.92 kg per horsepower). The 19.6-liter (5.2 US gal) fuel tank supports practical everyday commuting and weekend road stints, while factory top speed is listed at 173 km/h (107 mph).

Within MotoLibrary's BMW archive, this model family spans 15 indexed model years from 1980 to 1994, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.

Specific Output
62.7 HP/L
Power-to-Weight
0.26 HP/kg (3.92 kg/HP)
Engine
Displacement 797.0 ccm (48.63 cubic inches)
Engine Type Two cylinder boxer, four-stroke
Engine Details Two cylinder boxer, four-stroke
Power 50.0 HP (36.5 kW)) @ 6500 RPM
Compression 8.2:1
Bore x Stroke 84.8 x 70.6 mm (3.3 x 2.8 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 173.0 km/h (107.5 mph)
Wheels & Brakes
Front Tyre 3.00-21
Rear Tyre 4.00-18
Front Brakes Single disc
Rear Brakes Expanding brake
Dimensions & Weight
Weight incl. 196.0 kg (432.1 pounds)
Fuel Capacity 19.60 litres (5.18 US gallons)
More from BMW
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Power
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Fuel Capacity
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Brakes
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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
Off-Road & Adventure
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