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BMW · 1983

1983 BMW R 100 CS

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1983 BMW R 100 CS
Auction record
Average sale
$10,842
Sales
6
Low
$3,500
High
$25,000
+26%vs prior 12 months

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

DateListingPriceMileageSource
Aug 3, 20261984 BMW R100CS Last Edition$5,100Bring a Trailer
Sep 16, 20251984 BMW R100CS Last Edition$3,750Bring a Trailer
Nov 6, 20241984 BMW R100CS Last Edition$3,500Bring a Trailer
May 7, 20231984 BMW R100CS Last Edition$20,500Bring a Trailer
Jun 12, 20211984 BMW R100CS Last Edition$25,000Bring a Trailer
May 30, 20211983 BMW R100CS$7,200Bring a Trailer

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