1971 BMW R 75-5

Specifications
- Category
- Classic
- Displacement
- 745.0 ccm (45.46 cubic inches)
- Displacement (cc)
- 745.00
- Engine details
- Two cylinder boxer, four-stroke
- Power
- 50.0 HP (36.5 kW) @ 6200 RPM
- Top speed
- 175.0 km/h (108.7 mph)
- Compression
- 9.0:1
- Bore × stroke
- 82.0 x 70.6 mm (3.2 x 2.8 inches)
- Valves/cyl
- 2.0
- Fuel control
- Overhead Valves (OHV)
- Cooling
- Air
- Gearbox
- 4-speed
- Transmission
- Shaft drive (cardan) (final drive)
- Front tyre
- 3.25-19
- Rear tyre
- 4.00-18
- Front brakes
- Expanding brake
- Rear brakes
- Expanding brake
- Wet weight
- 227.0 kg (500.4 pounds)
- Fuel capacity
- 24.00 litres (6.34 US gallons)
The 1971 BMW R 75-5
1971 BMW R 75-5 sat at the top of the /5 lineup, the biggest and strongest twin BMW offered before the six-cylinder era ever entered anyone's imagination. This is a highway bike at heart, happiest holding a steady pace for hours with that boxer engine humming away between your knees and vibration kept in check by the shaft drive doing away with chain maintenance entirely. Handling is stable rather than sporty, the kind of machine that rewards smooth inputs and long-distance patience over aggressive backroad thrashing. It feels substantial under you, planted, built for touring rather than showing off at stoplights. The 1971 model carried over without significant mechanical changes from the prior year — buyers comparing it to a 1970 example should focus on mileage, service history, and condition rather than spec differences. Today's buyer tends to be someone already familiar with air-cooled BMWs, often moving up from a smaller /5 twin or downsizing from a modern touring rig, looking for mechanical honesty over electronics. Collector interest sits at a moderate level, driven by riders who want a usable classic rather than a garage ornament.
Auction history
| Date | Listing | Price | Mileage | Source |
|---|---|---|---|---|
| Aug 28, 2025 | 1971 BMW R75/5 Cafe Racer | $6,100 | — | Bring a Trailer |
| Jul 11, 2025 | 1971 BMW R75/5 | $5,800 | — | Bring a Trailer |
| Apr 3, 2025 | 1971 BMW R75/5 | $3,450 | — | Bring a Trailer |
| Nov 24, 2024 | Modified 1971 BMW R75/5 | $10,000 | — | Bring a Trailer |
| Aug 26, 2024 | 1971 BMW R75/5 | $9,071 | — | Bring a Trailer |
| Jun 28, 2024 | 1971 BMW R75/5 | $12,250 | — | Bring a Trailer |
| May 8, 2024 | 1971 BMW R75/5 | $5,500 | — | Bring a Trailer |
| Nov 3, 2023 | 1971 BMW R75/5 | $5,600 | — | Bring a Trailer |
| Sep 23, 2023 | 1971 BMW R75/5 | $9,499 | — | Bring a Trailer |
| Aug 4, 2023 | 1971 BMW R75/5 | $6,800 | — | Bring a Trailer |
| Jun 5, 2022 | 1971 BMW R75/5 | $12,500 | — | Bring a Trailer |
| May 6, 2021 | 1971 BMW R75/5 | $13,500 | — | Bring a Trailer |
| Mar 3, 2021 | 1971 BMW R75/5 | $8,300 | — | Bring a Trailer |
| Sep 8, 2020 | 1971 BMW R75/5 | $22,000 | — | Bring a Trailer |
| Jun 16, 2020 | 1971 BMW R75/5 | $9,566 | — | Bring a Trailer |
| Jun 9, 2020 | 1971 BMW R75/5 | $5,100 | — | Bring a Trailer |
| Jun 2, 2020 | 1971 BMW R75/5 | $5,100 | — | Bring a Trailer |
| Feb 7, 2020 | 1971 BMW R75/5 | $5,500 | — | Bring a Trailer |
| Aug 14, 2019 | 1971 BMW R75/5 Custom | $18,000 | — | Bring a Trailer |
| Sep 27, 2018 | 1971 BMW R75/5 | $5,600 | — | Bring a Trailer |