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This the OGS: The Original BMW G/S, and the start of the entire Adventure Bike category.
In original gorgeous condition, totally unrestored, this is a factory-stock survivor that had been held in a private collection in Europe.
It has travelled less than 4,000 miles since new, a true one-of-a-kind masterpiece.
The BMW R80G/S is a motorcycle that was manufactured in Berlin, Germany, by BMW Motorrad from 1980 to 1987. Production totalled 21,864 bikes. It was the first in the BMW GS family of specialised dual-sport bikes, of which over 500,000 have been produced, and is often considered the world's first "Adventure Bike" able to be equally as capable both on and off-road. The designation G/S stands for the German words Gelände/Straße, which mean offroad/road – highlighting the bike's dual sport design
The R80G/S (G for Gelände "offroad" in German S for Straße "street") was the first large displacement multisport bike on the market. The G/S was fitted with a 797.5 cc (48.67 cu in) BMW type 247 engine, which is a flat-twin (boxer) sometimes known as an airhead. The engine, which was fitted into an R65 frame, was a modified version of that fitted to the R80/7, featuring Nikasil cylinders, electronic ignition and a lighter flywheel. At the rear the bike had the new "monolever," a combined single-sided swingarm and drive shaft, with the rear damping provided by a single shock absorber. The monolever was stiffer and lighter than the design fitted to previous models, and was subsequently fitted to other BMW motorcycles. It was a sealed suspension lever with the driveline inside the lever filled with oil to lubricate the shaft and parts. The single sided swing arm enabled the rear wheel to be removed easily with the bike on the center stand. It differs from other BMW road bikes of the same era due to its lighter weight, longer suspension travel, and large 21 inch front wheel. The bike gained popularity with adventure-seeking travellers after having won the Paris-Dakar ralley several times. BMW offered numerous optional parts including a 32-litre (7.0 imp gal; 8.5 US gal) fuel tank with Gaston Rahier's signature, a solo seat, stainless exhaust and a larger battery meaning that for the first time a true adventure travel motorcycle could be purchased directly from a manufacturer. The market it created spawned many aftermarket motorcycle accessories, such as larger fuel tanks and panniers.
The R80G/S was developed for BMW by engineer Rüdiger Gutsche, a successful competitor in the International Six Days Trial on his specially adapted R75/5. In 1981, Hubert Auriol, riding a R80G/S prepared by German company HPN Motorradtechnik, won the Paris-Dakar Rally. He repeated his success on an 870 cc version of the R80G/S in 1983. Gaston Rahier won the Dakar on a R80G/S in 1984, and then again on a larger 1,000 cc engined R80G/S in 1985. To commemorate their success, BMW launched the R80G/S Paris-Dakar special edition which featured a 7 imperial gallons (32 l; 8.4 US gal) fuel tank, fitted with dual petcocks and signed by Gaston Rahier.
Manufacturer BMW Motorrad
Successor R80GS, R100GS
Engine 797.5 cc (48.67 cu in) flat-twin boxer
Bore / stroke 84.8 mm × 70.6 mm (3.34 in × 2.78 in)
Top speed 104 mph (167 km/h)
Power 50 hp (37 kW)
Torque 41 lb⋅ft (56 N⋅m)
Transmission 5-speed shaft drive
Suspension Front: Telescopic forks
Rear: Single spring / shock absorber
Brakes Front: Single 260 mm disc
Rear: 200 mm drum
Wheelbase 1,465 mm (57.7 in)
Dimensions L: 2,230 mm (88 in)
W: 820 mm (32 in)
H: 1,150 mm (45 in)
Seat height 860 mm (34 in)
Weight 186 kg (410 lb) (wet)
Fuel capacity 19.5 litres (4.3 imperial gallons)
Related R65GS, R80ST