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K 100 RS (2-Valve)
   
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Production
Begin of Production   1983
End of Production   1989
Number Sold   34.804
Price   15.190,- DM
Engine
Motor Type   four-stroke, horizontal four-cylinder in-line engine, liquid-cooled
Bore x Stroke   67 x 70 mm
Cubic Capacity   987 ccm
Max Power   90 hp (66 KW) at 8000 rpm
Max Torque   86 Nm at 6000 rpm
Compression Ratio   10.2 : 1
Valves per Cylinder   2
Valve Control   DOHC, using drive chain and cup tappets
Carburation System   electronic injection, Bosch LE-Jetronic
Engine Lubrication   wet sump
Power transmission
Clutch   dry single plate
Number of Gears   5
Gear Selection   dog-type gearbox (ratchet foot lever)
Gear Ratios   4.50 / 2.96 / 2.30 / 1.88 / 1.61 :1
Rear Wheel Ratio   1 : 2.81
Bevel / Crownwheel   11 / 31 teeth
Electrical system
Ignition   electronic ignition, Bosch LE-Jetronic
Alternator   12 V 460 W
Starter   0.7 kW
Spark Plugs   Bosch XR 5 DC, Beru 12-5 DU, Champion A 85 YC
 
Chassis
Type of Frame   tubular space frame, engine serving as load-bearing component
Front Suspension   telescopic fork with hydraulic shock absorber
Rear Suspension   BMW Monolever swinging arm
Spring Travel front/rear   185 / 110 mm
Rims front   2.50-18 MT H 2
Rims rear   2.75-17 MT H 2
Tyres front   100/90-V 18 or 100/90-VR 18
Tyres rear   130/90-V 17 or 130/90-VR 17
Brakes front   dual-disc brake 285 mm dia
Brakes rear   single disc brake 285 mm dia
Dimensions / Weights
Length x Width x Height   2220 x 800 x 1271 mm
Wheel Base   1516 mm
Tank Capacity   22 l
Unladen Weight, full Tank   249 kg
Max permissible Weight   480 kg
Ground Clearance   175 mm
Fuel Consumption   4,3 l/100 km (at constant 90 kph)
Top Speed   220 kph
Acceleration 0-100 kph   4,3 sec