Model: K 100
Production  
Engine  
Power transmission  
Electrical System  
Chassis  
Dimensions/Weights  
     
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Production
Begin of Production   1983
End of Production   1990
Number Sold   12.871
Price   12.490,- 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 : 2.91or 1 : 3.00 [K 100/2 from 1987 : 1 : 2.81]
Bevel / Crownwheel   11 / 32 teeth or 11 / 33 [K 100 / 2 from 1987: 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
Tyres rear   130/90-V 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 960 x 1155 mm
Wheel Base   1516 mm
Tank Capacity   22 l [K 100/2 from 1987: 21l]
Unladen Weight, full Tank   239 kg [K 100/2 from 1987: 240 kg]
Max permissible Weight   450 kg [K 100/2 from 1987: 480 kg]
Ground Clearance   175 mm
Fuel Consumption   5,0 l/100 km (at constant 90 kph)
Top Speed   215 kph
Acceleration 0-100 kph   4,3 sec