K100RS 2-Valve


Production Model Years
   1983 - 1989

Frame and Engine Numbers

   Frame numbers
    10001 - 20000
    40001 - 44906
    60001 - 60002
    80001 - 90000
    140001 - 149896
    ———
   Engine numbers
    10001 - 20000
    40001 - 44906
    60001 - 60002
    80001 - 90000
    140001 - 149896

Model Specifications
Drivetrain
Displacement987cc
Cylinders4
Bore x Stroke (mm)67 x 70
HP @ RPM90 @ 8000
Compression Ratio10.2:1
ValvesDOHC, 2 per cylinder
ClutchDry, single plate, cable operated
Transmission5 speed, foot shifted
Final DriveDriveshaft
Running Gear
FrameTubular space frame, engine stressed member
Front SuspensionHydraulically damped telescopic fork
Rear SuspensionMonolever single shock swingarm
Front BrakesDual Brembo 285mm hydraulic disc twin piston
Rear BrakesSingle Brembo 285mm hydraulic disc twin piston
Electrical
IgnitionElectronic ignition, Bosch LE Jetronic
Spark PlugsBosch XR5DC
GeneratorBosch 12V 460W
Capacities & Measurements
Weight249kg
Fuel22l
Wheelbase1516mm
Top Speed220kph
Number Produced34804
Serial numbers 4xxxx are US production; remainder are for the rest of the world.

The information provided here was obtained from a variety of public sources and may not reflect official BMW archival data.
Please contact the BMW Archives for official data regarding models.