1974 BMW R 90 S

Specifications
- Category
- Classic
- Displacement
- 898.0 ccm (54.80 cubic inches)
- Displacement (cc)
- 898.00
- Engine details
- Two cylinder boxer, four-stroke
- Power
- 67.0 HP (48.9 kW) @ 7000 RPM
- Top speed
- 196.0 km/h (121.8 mph)
- Compression
- 9.5:1
- Bore × stroke
- 90.0 x 70.6 mm (3.5 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
- Expanding brake
- Wet weight
- 232.0 kg (511.5 pounds)
- Fuel capacity
- 24.00 litres (6.34 US gallons)
The 1974 BMW R 90 S
1974 BMW R 90 S sits at the top of BMW's airhead lineup, the first genuinely sporting machine the company built around its boxer twin. This is a bike designed for long-distance riding at speed rather than commuting or short hops, with a fairing that actually does useful work at autobahn pace and a chassis that stays composed when things get fast. The shaft drive means none of the chain maintenance that would've plagued a contemporary Japanese liter bike, and the smoked paint and integrated cockpit fairing gave it a finished, purposeful look that stood apart from anything else BMW had made before. Riders describe it less as quick-handling and more as stable and confidence-inspiring over distance. The 1974 model carried over without significant mechanical changes from the prior year — buyers comparing it to a 1973 example should focus on mileage, service history, and condition rather than spec differences. Collector interest in the 1974 BMW R 90 S runs high today, drawing buyers who already own or have owned other airhead BMWs and want the model that started BMW's sport-touring identity. It appeals less to first-time vintage buyers and more to riders who know exactly what they're chasing.
Auction history
| Date | Listing | Price | Mileage | Source |
|---|---|---|---|---|
| Aug 28, 2026 | 1974 BMW R90S | $8,000 | — | Bring a Trailer |
| Jun 23, 2026 | 1974 BMW R90S | $7,900 | — | Bring a Trailer |
| Apr 29, 2026 | 1974 BMW R90S | $7,000 | — | Bring a Trailer |
| Feb 28, 2026 | 1974 BMW R90S Project | $3,800 | — | Bring a Trailer |
| Aug 7, 2025 | 1974 BMW R90S | $5,600 | — | Bring a Trailer |
| Jul 31, 2025 | 1974 BMW R90S | $10,250 | — | Bring a Trailer |
| Jul 17, 2025 | 1974 BMW R90S | $18,250 | — | Bring a Trailer |
| Apr 28, 2025 | 1974 BMW R90S | $7,000 | — | Bring a Trailer |
| Nov 25, 2024 | 1974 BMW R90S | $4,300 | — | Bring a Trailer |
| Oct 3, 2024 | 1974 BMW R90S | $12,250 | — | Bring a Trailer |
| Jul 31, 2024 | 1974 BMW R90S Project | $5,700 | — | Bring a Trailer |
| May 17, 2024 | 1974 BMW R90S | $7,100 | — | Bring a Trailer |
| Apr 17, 2024 | 1974 BMW R90S | $10,800 | — | Bring a Trailer |
| Mar 17, 2024 | 34-Years-Owned 1974 BMW R90S | $30,250 | — | Bring a Trailer |
| Feb 27, 2024 | 1974 BMW R90S | $13,500 | — | Bring a Trailer |
| Jun 4, 2023 | 1974 BMW R90S | $11,274 | — | Bring a Trailer |
| May 27, 2023 | 1974 BMW R90S | $12,000 | — | Bring a Trailer |
| Jan 28, 2023 | 1974 BMW R90S | $10,500 | — | Bring a Trailer |
| Oct 26, 2022 | 1974 BMW R90S | $7,800 | — | Bring a Trailer |
| Sep 13, 2022 | Modified 1974 BMW R90S | $6,800 | — | Bring a Trailer |
| Aug 24, 2022 | 1974 BMW R90S | $7,900 | — | Bring a Trailer |
| May 23, 2022 | 1974 BMW R90S | $9,099 | — | Bring a Trailer |
| Apr 1, 2021 | 1974 BMW R90S | $11,500 | — | Bring a Trailer |
| Sep 29, 2020 | 1974 BMW R90S | $13,500 | — | Bring a Trailer |
| Jun 18, 2020 | 1974 BMW R90S | $8,400 | — | Bring a Trailer |
| Jan 2, 2020 | 1974 BMW R90S | $13,250 | — | Bring a Trailer |
| Nov 19, 2018 | 1974 BMW R90S | $10,300 | — | Bring a Trailer |
