1985 BMW R80

Specifications
- Category
- Allround
- Displacement
- 797.0 ccm (48.63 cubic inches)
- Displacement (cc)
- 797.00
- Engine details
- Two cylinder boxer, four-stroke
- Power
- 50.0 HP (36.5 kW) @ 6500 RPM
- Top speed
- 181.0 km/h (112.5 mph)
- Compression
- 8.2:1
- Bore × stroke
- 84.8 x 70.6 mm (3.3 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
- 90/90-18
- Rear tyre
- 120/90-18
- Front brakes
- Single disc
- Rear brakes
- Expanding brake
- Wet weight
- 207.0 kg (456.4 pounds)
- Fuel capacity
- 22.00 litres (5.81 US gallons)
The 1985 BMW R80
1985 BMW R80 sits in the middle of BMW's airhead lineup, the sensible boxer twin for riders who wanted shaft-drive simplicity without the R100's extra bulk. This is a bike built for covering ground rather than chasing lap times: the low-revving flat twin makes its power in a broad, usable spread, and the shaft final drive means no chain to adjust on a wet roadside somewhere in the Alps. Handling is upright and unhurried, favoring stability over agility, and that low center of gravity from the boxer engine makes the R80 feel more manageable at a stop than its weight suggests. It's a bike you settle into for a day rather than wrestle for an afternoon. The 1985 model carried over without significant mechanical changes from the prior year — buyers comparing it to a 1984 example should focus on mileage, service history, and condition rather than spec differences. Today's typical buyer is someone who rode airheads decades ago and wants one back, or a mechanically curious owner drawn to a simple, rebuildable engine over modern electronics. Collector interest sits at a moderate level, with clean, well-documented examples of the 1985 BMW R80 holding steady value rather than spiking.
Auction history
| Date | Listing | Price | Mileage | Source |
|---|---|---|---|---|
| Sep 7, 2025 | 1985 BMW R80 | $6,900 | — | Bring a Trailer |
| Sep 23, 2023 | Modified 1985 BMW R80 | $16,500 | — | Bring a Trailer |


