BMW R 80 G/s - 1985 Specifications and Reviews

The 1985 BMW R 80 G/S is a versatile adventure bike suited for riders seeking reliable, all-terrain capability. Powered by an air-cooled 797cc boxer twin producing 50 horsepower, it delivers dependable torque and legendary durability. This machine pioneered the modern adventure touring category, excelling both on pavement and unpaved roads with its balanced handling and robust shaft-drive transmission.

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General information

CategoryAllround
Year1985
ModelBMW R 80 G/S

Engine and Transmission Specifications

Transmission typefinal driveShaft drive (cardan)
Gearbox5-speed
Cooling systemAir
Fuel controlOHV
Valves per cylinder2
Bore x stroke84.8 x 70.6 mm (3.3 x 2.8 inches)
Compression8.2:1
Power50.00
Stroke4
Engine typeTwo cylinder boxer
Capacity:797.00 ccm (48.63 cubic inches)
 
 

Physical measures and capacities

Weight incl. oil, gas, etc196.0 kg (432.1 pounds)

BMW R 80 G/s dimensions and frame

Rear brakesExpanding brake
Front brakesSingle disc
Rear tyre dimensions4.00-18
Front tyre dimensions3.00-21

Speed and acceleration

Top speed173.0 km/h (107.5 mph)

Other specs

MaintenanceFind parts, fluids, filters, maintenance tools and service items on eBay
Fuel capacity19.50 litres (5.15 gallons)

Performance Profile & Rider Fit

50 hp
Peak Power
5.8s
0-60 mph
107.5 mph
Top Speed

Best For

Track8%
City58%
Cornering50%
Daily Riding65%
Touring78%
Passenger62%

Rider Profile

Best ForSuited to intermediate riders comfortable managing a tall, top-heavy machine; forgiving power delivery welcomes newcomers to adventure riding but weight demands care off-road.
PurposeThe original dual-sport adventure tourer: built to cover long distances on tarmac and rough tracks alike, ideal for exploration and round-the-world journeys.
Rider FitUpright, roomy ergonomics with a tall seat and 21-inch front wheel. At 196kg it feels planted but hefty in the dirt; wide boxer twin and shaft drive keep maintenance simple.
CharacterA rugged, unhurried icon. The torquey air-cooled boxer and bulletproof shaft drive make it dependable and characterful rather than fast - the bike that founded the GS legend.
Not Ideal ForNot for speed seekers, track riders, or those wanting nimble technical enduro performance; its weight and modest power frustrate anyone chasing outright pace.

Character map is an editorial estimate based on this bike's specifications, not a lab-tested measurement.

Rider Reviews

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