1989 BMW R 100 GS

Specifications
- Category
- Enduro / offroad
- 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 1989 BMW R 100 GS
1989 BMW R 100 GS sits near the top of BMW's boxer-powered enduro line, the big-bore option for riders who wanted genuine long-distance offroad capability rather than a dressed-up street bike. This is the machine that essentially created the adventure touring category, pairing a torquey air-cooled twin with a chassis built to handle gravel roads, mountain passes, and fully loaded panniers without complaint. The shaft drive means no chain maintenance on dusty trails, and the fuel range from that tank size suits genuine two-up touring far from a gas station. It's a bike that rewards patience over aggression, comfortable at a steady pace across varied terrain rather than built for quick throttle response. The 1989 model carried over without significant mechanical changes from the prior year, so buyers comparing it to a 1988 example should focus on mileage, service history, and condition rather than spec differences. Today's buyer is often someone transitioning from modern adventure bikes seeking mechanical simplicity, or a longtime BMW owner chasing the machine that started the GS lineage. Collector interest remains high, particularly for well-documented, low-mileage examples with original paint and unmolested drivetrains.
Auction history
| Date | Listing | Price | Mileage | Source |
|---|---|---|---|---|
| Jul 24, 2026 | 1989 BMW R100GS | $7,000 | — | Bring a Trailer |
| May 26, 2024 | 1990 BMW R100GS | $8,100 | — | Bring a Trailer |
| Aug 19, 2022 | 1989 BMW R100GS | $12,750 | — | Bring a Trailer |
| Jan 25, 2022 | 1989 BMW R100GS | $9,588 | — | Bring a Trailer |
| Nov 23, 2021 | 1989 BMW R100GS | $8,300 | — | Bring a Trailer |
| Mar 16, 2021 | 1989 BMW R100GS | $8,000 | — | Bring a Trailer |
| Dec 2, 2020 | 1989 BMW R100GS | $13,750 | — | Bring a Trailer |
All BMW R 100 GS years
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