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Motorcycle specifications BMWR 80 G/S 1980 The adventure begins here

On-Off Road
Photo of BMW R 80 G/S 1980

presentation of the R 80 G/S 1980

At the beginning of the 80s, BMW saw the rise of trail bikes equipped with large-displacement 4-stroke single-cylinders. Virtually all the Japanese manufacturers had 400cc or 500cc models, establishing their superiority in this segment.

BMW is faced with a major problem: it has no engine to compete directly with the XT, XLR and other DR-S models. No problem, BMW Motorrad will fight with its own weapons: the Flat Twin.

Admittedly, BMW's first big trail bike won't have the advantage of lightness and small size. But it allows the brand to offer a different model, one that is heavier, but also more powerful, more stable and more roadworthy.

BMW R 80 G/S 1980 - 1BMW R 80 G/S 1980 - 1

The GS uses the 800cc flat engine, which is more than powerful enough to cope with the 500cc armada of the time. It develops 50 hp, while the most powerful Japanese motorcycle of the time can only predict 32 hp (Honda XL500S).

Although the bike's 167 kg dry weight (around 185 kg in running order) and 850 mm seat height make it very imposing, the newcomer remains accessible thanks to its low center of gravity (thanks to the flat twin). The BMW's long wheelbase, necessitated by the length of the powertrain, makes it very stable, but agility is not sacrificed.

Série spéciale R80GS Kalihari de 1996 without realizing it, BMW Motorrad has invented a new sub-family: the trail bike. While the GS is well-suited to rolling roads, and the Paris Dakar version released the same year has great competition potential, it also boasts excellent road-holding qualities. The driving position is very comfortable over long distances, and it can be equipped for travel thanks to BMW's range of accessories (suitcase, trunk, etc.). What's more, the indefatigable engine lets you drive at a good pace, without ever showing signs of fatigue.

Its qualities earned it one of the longest careers in the trail category, with BMW updating it several times. In 1987, it was equipped with the excellent Paraleveler transmission. The same year, it was joined by a more powerful 1000cc version and a smaller, more basic 650cc model. The latest evolution came out in 1997 and was sold in France until 1999. When it bowed out after 19 years of loyal service.

Tanthallas - Photos: Manufacturer

Key facts BMW R 80 G/S (1980) : What you need to know before you buy

Highlights

  • Engine comfort
  • Mechanical access

Weak points

  • Poids
  • Price

Bikers' reviews

of 1 reviews

Model sold in 1980

Performance

Specifications BMW R 80 G/S 1980

Chassis
Frame : tubular with double steel cradle, load-bearing motor
Fuel capacity : 19.50 liters (5.15 US gallons)
Seat height : 850 mm (33.46 in)
Length : 2,230 mm (87.80 in)
Width : 820 mm (32.28 in)
Min height : 1,150 mm (45.28 in)
Wheelbase : 1,465 mm (57.68 in)
Dry weight : 167 kg (368 lb)
Weight when fully loaded : 185 kg (408 lb)
Front axle
telescopic anti-dive fork, Wheel travel : 200 mm (7.87 in)
Braking 1 disc Ø 285 mm (11.22 in), 2-piston caliper
Front tire : 90 / 90 - 21 → Order this type of tire
Pressure : 2.2 bar
Transmission
5 stage gearbox
Secondary cardan shaft
Rear axle
Mono-shock and Mono-arm Monolever, Wheel travel : 170 mm (6.69 in)
drum brakes Ø 260 mm (10.24 in) (simple came)
Rear tire : 130 / 80 - 17 → Order this type of tire
Pressure : 2.5 bar
Motor
two-cylinder flat , 4 strokes
2 carburetors Ø 32 mm
Cooling system : by air
tumbled
2 valves per cylinder
798 cc
50 ch (49.30 hp) to 6,500 rpm
5.90 mkg to 5,000 rpm
Power-to-weight ratio : 3.39 kg/ch
Weight / torque ratio : 28.31 kg/mkg
Compression : 8.2 : 1
Practical information
Take care of your motorcycle! Find all the parts and maintenance products you need to keep your bike in top condition.
Motorcyle equipment adapted for all members of the family and security elements.

Models

1980

Compare the R 80 G/S to its competitors

Bikers' reviews Leave a review - 1 review

French Model 1980
certainly the best bike I've ever owned (starts up in all conditions, easy maintenance, unsurprising reliability); a bike for every day, every terrain Rating : 5/5
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FAQ Your frequently asked questions about the R 80 G/S 1980

What is the power of the R 80 G/S 1980?
The R 80 G/S 1980 develops a power of 50 ch (49.30 hp)
What is the torque of the R 80 G/S 1980?
The maximum torque of the R 80 G/S 1980 is 5.90 mkg to 5,000 rpm.
What is the maximum speed of the R 80 G/S 1980?
The R 80 G/S 1980 is capable of reaching a top speed of 168 km/h (104.40 mph) on the track.
What is the weight of the R 80 G/S 1980?
The R 80 G/S 1980 has a a dry weight of 167 kg (368 lb), a weight when fully loaded of 185 kg (408 lb).
What is the fuel consumption of the R 80 G/S 1980?
Average fuel consumption is estimated at 5.50 l/100km (0.43 mpg) according to the WMTC cycle.
QWhat is the seat height of the R 80 G/S 1980?
To ensure good accessibility, the R 80 G/S 1980 offers a minimum seat height of 850 mm (33.46 in).