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BMW · 1977–1983

1977 BMW R 100 RS

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1977 BMW R 100 RS
Auction record
Average sale
$8,656
Sales
12
Low
$5,250
High
$13,500
-31%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) @ 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

DateListingPriceMileageSource
Aug 25, 20261977 BMW R100RS$6,000—Bring a Trailer
Aug 30, 20251977 BMW R100RS$5,250—Bring a Trailer
Aug 21, 202529-Years-Owned 1977 BMW R100RS$13,000—Bring a Trailer
Jul 16, 20251977 BMW R100RS$7,700—Bring a Trailer
Sep 8, 20241977 BMW R100RS$13,500—Bring a Trailer
Jan 7, 2024Original-Owner 1977 BMW R100RS$8,777—Bring a Trailer
Oct 13, 20231977 BMW R100RS$10,000—Bring a Trailer
Aug 28, 20231977 BMW R100RS$7,600—Bring a Trailer
Mar 1, 2023Single-Family-Owned 1977 BMW R100RS$10,250—Bring a Trailer
Feb 5, 20231977 BMW R100RS$6,800—Bring a Trailer
Nov 3, 20211977 BMW R100RS$7,000—Bring a Trailer
Dec 16, 20191977 BMW R100RS$8,000—Bring a Trailer

All BMW R 100 RS years

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