1983 BMW R 100 CS

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) @ 7000 RPM
- Top speed
- 194.0 km/h (120.5 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
- Expanding brake
- Wet weight
- 232.0 kg (511.5 pounds)
- Fuel capacity
- 24.00 litres (6.34 US gallons)
The 1983 BMW R 100 CS
1983 BMW R 100 CS sat near the top of BMW's airhead lineup, the sport-oriented flagship built for riders who wanted the marque's touring competence with a sharper edge. This is a bike that rewards a relaxed but purposeful riding style: the boxer twin pulls smoothly from low revs, the fairing takes the edge off highway buffeting, and the shaft drive means you're not fussing with a chain on weekend rides. It's not quick by modern standards, but it's stable, predictable, and genuinely pleasant to cover distance on. Owners describe it as a bike you settle into rather than wrestle with, suited to twisty back roads as much as autobahn stretches.
The 1983 model carried over without significant mechanical changes from the prior year — buyers comparing it to a 1982 example should focus on mileage, service history, and condition rather than spec differences.
Today's buyer is typically a longtime BMW rider or a collector drawn to the airhead era before BMW moved to the K-series, someone who values mechanical simplicity and a bike that's appreciating rather than depreciating. The 1983 BMW R 100 CS holds moderate to high collector interest, making condition and originality worth paying attention to.
Auction history
| Date | Listing | Price | Mileage | Source |
|---|---|---|---|---|
| Aug 3, 2026 | 1984 BMW R100CS Last Edition | $5,100 | — | Bring a Trailer |
| Sep 16, 2025 | 1984 BMW R100CS Last Edition | $3,750 | — | Bring a Trailer |
| Nov 6, 2024 | 1984 BMW R100CS Last Edition | $3,500 | — | Bring a Trailer |
| May 7, 2023 | 1984 BMW R100CS Last Edition | $20,500 | — | Bring a Trailer |
| Jun 12, 2021 | 1984 BMW R100CS Last Edition | $25,000 | — | Bring a Trailer |
| May 30, 2021 | 1983 BMW R100CS | $7,200 | — | Bring a Trailer |


