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BMW · 1977

1977 BMW R 100-7

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1977 BMW R 100-7
Auction record
Average sale
$7,711
Sales
13
Low
$2,650
High
$21,000
-40%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
60.0 HP (43.8 kW) @ 6500 RPM
Torque
71.5 Nm (7.3 kgf-m or 52.7 ft.lbs)
Top speed
192.0 km/h (119.3 mph)
Compression
9.0:1
Bore × stroke
94.0 x 70.6 mm (3.7 x 2.8 inches)
Valves/cyl
2.0
Fuel system
Carburettor. 2 x 36mm Bing V94
Fuel control
Overhead Valves (OHV)
Ignition
Battery ignition
Cooling
Air
Gearbox
5-speed
Transmission
Shaft drive (cardan) (final drive)
Clutch
Single dry plate
Frame
Double sown tubs, dual cradle
Front suspension
Telescopic fork with hydraulic shock absorber.
Front travel
200 mm (7.9 inches)
Rear suspension
Long swinging arm with adjustable strut.
Rear travel
125 mm (4.9 inches)
Front brakes
Double disc
Front brake Ø
260 mm (10.2 inches)
Rear brakes
Expanding brake
Rear brake Ø
200 mm (7.9 inches)
Dry weight
215.0 kg (474.0 pounds)
Wet weight
236.0 kg (520.3 pounds)
Seat height
810 mm (31.9 inches) If adjustable, lowest setting.
Wheelbase
1465 mm (57.7 inches)
Fuel capacity
24.00 litres (6.34 US gallons)
Starter
Electric

The 1977 BMW R 100-7

1977 BMW R 100-7 sits at the top of BMW's airhead lineup that year, the biggest-displacement boxer twin the factory offered before the S and RS variants took over that role. This is a long-haul touring bike built around a torquey, unstressed engine and shaft drive that asks for almost nothing beyond oil changes and valve adjustments. It rewards a relaxed riding style: steady highway cruising, two-up trips with luggage, the kind of riding where you settle into a rhythm rather than chase apexes. The flat-twin layout keeps the center of gravity low, which makes the bike feel more manageable at a stop than its weight suggests once you're moving. 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. Owners tend to be experienced riders who've moved past sportbikes and want something built for distance and durability, often mechanically inclined enough to handle their own maintenance. Collector interest in the 1977 BMW R 100-7 remains moderate, appealing to airhead loyalists more than speculative investors, with clean, well-documented examples holding steady value over flashier alternatives.

Auction history

DateListingPriceMileageSource
Aug 6, 20261978 BMW R100/7$3,400Bring a Trailer
Aug 24, 20251978 BMW R100/7$5,100Bring a Trailer
Aug 7, 2025Modified 1977 BMW R100/7$8,000Bring a Trailer
Jul 20, 20251978 BMW R100/7$2,650Bring a Trailer
May 20, 2025Modified 1977 BMW R100/7$7,000Bring a Trailer
Jul 25, 2024Original-Owner 1977 BMW R100/7$5,000Bring a Trailer
Jul 17, 20231978 BMW R100/7$5,000Bring a Trailer
Jun 27, 2023Modified 1978 BMW R100/7$8,600Bring a Trailer
May 31, 2023Modified 1977 BMW R100/7$12,500Bring a Trailer
Aug 27, 2021Modified 1978 BMW R100/7$21,000Bring a Trailer
Jul 21, 20211977 BMW R100/7$4,600Bring a Trailer
Feb 8, 20211977 BMW R100/7 w/Squire Sidecar$8,500Bring a Trailer
Feb 13, 2019Modified 1978 BMW R100/7$8,888Bring a Trailer

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