The BMW R 100S – a testament to the marque’s enduring formula for performance. By increasing cylinder bore diameter to 94mm, BMW’s engineers have coaxed a respectable 980cc from the familiar horizontally-opposed twin. The result is a potent engine that combines the quiet, comfortable ride of its predecessors with a welcome dash of sporting character. The Bing constant depression carburettors, a hallmark of BMW’s engine design, deliver crisp throttle response and a linear power curve. Whether cruising the twisties or carving up the canyon roads, the R 100S is a masterclass in understated sophistication, with its smooth, progressive power delivery and reassuring weight distribution making it a joy to ride. It’s a bike that will leave you beaming with satisfaction.
Key Specifications
Engine Type
Four stroke, two cylinder horizontally opposed Boxer, 2 valves per cylinder
Engine Capacity
980 cc / 59.8 cu in
Max Power
51 kw / 70 hp
Max Torque
76 Nm / 7.7 kgf-m / 56 ft-lb @ 6000 rpm
Fuel Tank Capacity
6.3 US gallons / 24.0 L
Weight (Wet/Kerb)
484 lbs / 220 kg
Seat Height
32.3 inches / 820 mm
*n/a – information not provided by manufacturer
All Specifications
Make & Model
Model
BMW R 100S
Year
1979 – 80
Engine
Engine Type
Four stroke, two cylinder horizontally opposed Boxer, 2 valves per cylinder
Displacement
980 cc / 59.8 cu in
Bore x Stroke
94 x 70.6 mm
Compression Ratio
9.5:1
Max Horsepower
51 kw / 70 hp
Max Torque
76 Nm / 7.7 kgf-m / 56 ft-lb @ 6000 rpm
Engine Management System
2 x constant depression carburettors, Bing 94/40/105 – 94/40/106
*We strive to provide the most comprehensive and accurate specifications possible. However, certain details may not be available if the manufacturer did not disclose them or if the information is no longer publicly accessible. If you find any discrepancy with any data on this site, please feel free to let us know at contact@throttlecraze.com
