BMW K 100

BMW K 100 Date 1983-1990

Number sold 12.871

Price 12.490,- DM

Engine

Type four-stroke, horizontal four-cylinder in-line engine, liquid-cooled
Bore/stroke 67 x 70 mm
Cubic capacity 987 cm3
Max power 90 PS (66 kW) at 8000 rpm
Max torque 98 Nm at 3000 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 ab 1987: 1 : 2,81]
Bevel/crown wheel 11 : 32 teeth or 11 : 33 [K 100/2 ab 1987: 11 : 31 teeth ]

Electrical system

Alternator 12 V / 460 W
Ignition electronic ignition Bosch LE-Jetronic
Starter 0,7 kW
Spark plugs Bosch XR 5 DC, Beru 12-5 DU, Champion A 85YC

Suspension

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 185 / 110 mm
Rims front 2,50 x 18 MT H 2
Rims rear 2,75 x 17 MT H 2
Tyres front 100/90-V 18
Tyres rear 130/90-V 17
Brakes front dual-disc brake 285 mm
Brakes rear single disc brake 285 mm

Dimensions and weights

Length x width x height 2220 x 960 x 1155 mm
Wheel base 1516 mm
Ground clearance 175 mm
Tank capacity 22 l [K 100/2 ab 1987: 21l]
Unladen weight, full tank 239 kg [K 100/2 ab 1987: 240 kg]
Max permissible weight 450 kg [K 100/2 ab 1987: 480 kg]
Fuel consumption 5,0 l / 100 km ( at constant 90 km/h)
Acceleration 0 - 100 km/h 4,3 s
Top speed 215 km/h

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