1977 BMW R 100-7

Specifications
- Category
- Classic
- 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
- Torque
- 71.5 Nm (7.3 kgf-m or 52.7 ft.lbs)
- Top speed
- 192.0 km/h (119.3 mph)
- Compression
- 9.0:1
- Bore × stroke
- 94.0 x 70.6 mm (3.7 x 2.8 inches)
- Valves/cyl
- 2.0
- Fuel system
- Carburettor. 2 x 36mm Bing V94
- Fuel control
- Overhead Valves (OHV)
- Ignition
- Battery ignition
- Cooling
- Air
- Gearbox
- 5-speed
- Transmission
- Shaft drive (cardan) (final drive)
- Clutch
- Single dry plate
- Frame
- Double sown tubs, dual cradle
- Front suspension
- Telescopic fork with hydraulic shock absorber.
- Front travel
- 200 mm (7.9 inches)
- Rear suspension
- Long swinging arm with adjustable strut.
- Rear travel
- 125 mm (4.9 inches)
- Front brakes
- Double disc
- Front brake Ø
- 260 mm (10.2 inches)
- Rear brakes
- Expanding brake
- Rear brake Ø
- 200 mm (7.9 inches)
- Dry weight
- 215.0 kg (474.0 pounds)
- Wet weight
- 236.0 kg (520.3 pounds)
- Seat height
- 810 mm (31.9 inches) If adjustable, lowest setting.
- Wheelbase
- 1465 mm (57.7 inches)
- Fuel capacity
- 24.00 litres (6.34 US gallons)
- Starter
- Electric
The 1977 BMW R 100-7
1977 BMW R 100-7 sits at the top of BMW's airhead lineup that year, the biggest-displacement boxer twin the factory offered before the S and RS variants took over that role. This is a long-haul touring bike built around a torquey, unstressed engine and shaft drive that asks for almost nothing beyond oil changes and valve adjustments. It rewards a relaxed riding style: steady highway cruising, two-up trips with luggage, the kind of riding where you settle into a rhythm rather than chase apexes. The flat-twin layout keeps the center of gravity low, which makes the bike feel more manageable at a stop than its weight suggests once you're moving. The 1977 model carried over without significant mechanical changes from the prior year — buyers comparing it to a 1976 example should focus on mileage, service history, and condition rather than spec differences. Owners tend to be experienced riders who've moved past sportbikes and want something built for distance and durability, often mechanically inclined enough to handle their own maintenance. Collector interest in the 1977 BMW R 100-7 remains moderate, appealing to airhead loyalists more than speculative investors, with clean, well-documented examples holding steady value over flashier alternatives.
Auction history
| Date | Listing | Price | Mileage | Source |
|---|---|---|---|---|
| Aug 6, 2026 | 1978 BMW R100/7 | $3,400 | — | Bring a Trailer |
| Aug 24, 2025 | 1978 BMW R100/7 | $5,100 | — | Bring a Trailer |
| Aug 7, 2025 | Modified 1977 BMW R100/7 | $8,000 | — | Bring a Trailer |
| Jul 20, 2025 | 1978 BMW R100/7 | $2,650 | — | Bring a Trailer |
| May 20, 2025 | Modified 1977 BMW R100/7 | $7,000 | — | Bring a Trailer |
| Jul 25, 2024 | Original-Owner 1977 BMW R100/7 | $5,000 | — | Bring a Trailer |
| Jul 17, 2023 | 1978 BMW R100/7 | $5,000 | — | Bring a Trailer |
| Jun 27, 2023 | Modified 1978 BMW R100/7 | $8,600 | — | Bring a Trailer |
| May 31, 2023 | Modified 1977 BMW R100/7 | $12,500 | — | Bring a Trailer |
| Aug 27, 2021 | Modified 1978 BMW R100/7 | $21,000 | — | Bring a Trailer |
| Jul 21, 2021 | 1977 BMW R100/7 | $4,600 | — | Bring a Trailer |
| Feb 8, 2021 | 1977 BMW R100/7 w/Squire Sidecar | $8,500 | — | Bring a Trailer |
| Feb 13, 2019 | Modified 1978 BMW R100/7 | $8,888 | — | Bring a Trailer |
