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BMW · 1988–1992

1991 BMW R 100 GS

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1991 BMW R 100 GS
Photo: "S de Santi" from Madrid, SPAIN, CC BY 2.0, via Wikimedia Commons · CC BY
Auction record
Average sale
$6,524
Sales
9
Low
$4,600
High
$12,418
-51%vs prior 12 months

Specifications

Category
Touring
Displacement
979.0 ccm (59.74 cubic inches)
Displacement (cc)
979.00
Engine details
Two cylinder boxer, four-stroke
Power
60.0 HP (43.8 kW) @ 6500 RPM
Top speed
164.0 km/h (101.9 mph)
Compression
8.5:1
Bore × stroke
94.0 x 70.6 mm (3.7 x 2.8 inches)
Valves/cyl
2.0
Fuel control
Overhead Valves (OHV)
Cooling
Air
Gearbox
5-speed
Transmission
Shaft drive (cardan) (final drive)
Front tyre
90/90-21
Rear tyre
130/80-17
Front brakes
Single disc
Rear brakes
Expanding brake
Wet weight
225.0 kg (496.0 pounds)
Fuel capacity
26.00 litres (6.87 US gallons)

The 1991 BMW R 100 GS

The 1991 BMW R 100 GS sits in the middle of BMW's adventure-touring range, the machine that essentially proved a road-biased boxer could handle dirt roads and still cross continents in comfort. This is a bike built around the airhead twin's low-end pull and mechanical simplicity, which matters more than any horsepower figure once you're two days from the nearest dealer. The tall suspension travel and upright ergonomics reward riders who want to point the front wheel at gravel tracks, forest service roads, or an unpaved border crossing without worrying about fragility. It's heavy by modern standards and not quick, but it's stable at speed and forgiving when the surface turns loose. The 1991 model carried over without significant mechanical changes from the prior year — buyers comparing it to a 1990 example should focus on mileage, service history, and condition rather than spec differences. Owners tend to be experienced riders drawn to long-distance touring and light off-road travel, often people who've owned newer GS models and want something simpler to maintain. Collector interest in the 1991 BMW R 100 GS remains moderate, mostly from riders who actually use these bikes rather than park them.

Auction history

DateListingPriceMileageSource
Feb 12, 20261991 BMW R100GS$6,100—Bring a Trailer
Jul 30, 20251991 BMW R100GS$12,418—Bring a Trailer
Sep 20, 20241991 BMW R100GS$6,100—Bring a Trailer
Sep 9, 20241991 BMW R100GS$4,750—Bring a Trailer
Jan 8, 2024Modified 1991 BMW R100GS$4,600—Bring a Trailer
Nov 17, 202228-Years-Owned 1991 BMW R100GS$7,000—Bring a Trailer
Oct 14, 20221991 BMW R100GS$6,399—Bring a Trailer
Dec 28, 20211991 BMW R100GS$5,100—Bring a Trailer
Dec 20, 20211991 BMW R100GS$6,250—Bring a Trailer

All BMW R 100 GS years

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