BMW K 100 RS - 1991 Specifications and Reviews

The 1991 BMW K 100 RS is a liquid-cooled sport tourer ideal for riders seeking comfortable long-distance travel with spirited performance. Powered by a 987cc inline-four producing 100 horsepower, it's renowned for its smooth, sophisticated engineering and shaft-drive reliability. The balanced chassis and fairing make it equally at home on highways or winding roads.

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General information

CategorySport touring
Year1991
ModelBMW K 100 RS

Engine and Transmission Specifications

Transmission typefinal driveShaft drive (cardan)
Gearbox5-speed
Cooling systemLiquid
Fuel controlDOHC
Valves per cylinder4
Bore x stroke67.0 x 70.0 mm (2.6 x 2.8 inches)
Compression11.0:1
Power100.00
Stroke4
Engine typeIn-line four
Capacity:987.00 ccm (60.23 cubic inches)
 
 

Physical measures and capacities

Weight incl. oil, gas, etc277.0 kg (610.7 pounds)

BMW K 100 RS dimensions and frame

Rear brakesSingle disc
Front brakesDual disc
Rear tyre dimensions160/60-18
Front tyre dimensions120/70-17

Speed and acceleration

Top speed225.0 km/h (139.8 mph)
 
 

Other specs

MaintenanceFind parts, fluids, filters, maintenance tools and service items on eBay
Fuel capacity22.00 litres (5.81 gallons)

Performance Profile & Rider Fit

100 hp
Peak Power
3.8s
0-60 mph

Best For

Track35%
City45%
Cornering60%
Daily Riding65%
Touring90%
Passenger80%

Rider Profile

Best ForBest suited to riders with some experience, as the K100 RS is a substantial, shaft-driven machine that rewards smooth, deliberate inputs rather than aggressive riding.
PurposeBuilt for confident high-speed touring and long-distance road covering, blending sporty performance with genuine cross-country comfort.
Rider FitA tall, heavy bike with a wide fairing and a forward-leaning but not extreme sport-touring riding position, favoring taller and stronger riders.
CharacterA solid, mechanically distinctive in-line four with shaft drive that delivers smooth, linear power and a reassuring, stable feel at speed.
Not Ideal ForNot a good fit for new riders, off-road enthusiasts, or anyone wanting a light, flickable machine for tight urban maneuvering.

Character map is an editorial estimate based on this bike's specifications, not a lab-tested measurement.

Rider Reviews

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