1977 BMW R 100 RS

Specifications
- Category
- Classic
- Displacement
- 979.0 ccm (59.74 cubic inches)
- Displacement (cc)
- 979.00
- Engine details
- Two cylinder boxer, four-stroke
- Power
- 70.0 HP (51.1 kW) @ 7250 RPM
- Top speed
- 193.0 km/h (119.9 mph)
- Compression
- 9.5:1
- 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
- 3.25-19
- Rear tyre
- 4.00-18
- Front brakes
- Dual disc
- Rear brakes
- Single disc
- Wet weight
- 247.0 kg (544.5 pounds)
- Fuel capacity
- 24.00 litres (6.34 US gallons)
The 1977 BMW R 100 RS
1977 BMW R 100 RS sat at the top of BMW's airhead lineup as the flagship sport-touring machine, the fastest and most aerodynamically considered motorcycle the factory built at the time. This is a bike designed around a full fairing, one of the first production motorcycles to get proper wind-tunnel attention, and the effect shows up not in numbers but in how it rides at speed: less buffeting, less fatigue, a rider who arrives at the destination without feeling wrung out. The boxer engine and shaft drive give it the low-maintenance, long-haul character BMW built its reputation on, favoring smooth-throttle highway miles over quick direction changes. It's a bike that rewards patience rather than aggression. 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. Today's buyers tend to be BMW airhead enthusiasts or former sport-touring riders looking to reconnect with the bike that essentially invented the category, and given the high collector interest surrounding the 1977 BMW R 100 RS, well-documented, low-mileage examples command real attention at auction.
Auction history
| Date | Listing | Price | Mileage | Source |
|---|---|---|---|---|
| Aug 25, 2026 | 1977 BMW R100RS | $6,000 | — | Bring a Trailer |
| Aug 30, 2025 | 1977 BMW R100RS | $5,250 | — | Bring a Trailer |
| Aug 21, 2025 | 29-Years-Owned 1977 BMW R100RS | $13,000 | — | Bring a Trailer |
| Jul 16, 2025 | 1977 BMW R100RS | $7,700 | — | Bring a Trailer |
| Sep 8, 2024 | 1977 BMW R100RS | $13,500 | — | Bring a Trailer |
| Jan 7, 2024 | Original-Owner 1977 BMW R100RS | $8,777 | — | Bring a Trailer |
| Oct 13, 2023 | 1977 BMW R100RS | $10,000 | — | Bring a Trailer |
| Aug 28, 2023 | 1977 BMW R100RS | $7,600 | — | Bring a Trailer |
| Mar 1, 2023 | Single-Family-Owned 1977 BMW R100RS | $10,250 | — | Bring a Trailer |
| Feb 5, 2023 | 1977 BMW R100RS | $6,800 | — | Bring a Trailer |
| Nov 3, 2021 | 1977 BMW R100RS | $7,000 | — | Bring a Trailer |
| Dec 16, 2019 | 1977 BMW R100RS | $8,000 | — | Bring a Trailer |
All BMW R 100 RS years
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