BMW K 100 RS (2-valve)
VisualDate 1983-1989
Number sold 34.804
Price 15.190,- DM
Engine
Typefour-stroke, horizontal four-cylinder in-line engine, liquid-cooled
Bore/stroke67 x 70 mm
Cubic capacity987 cm3
Max power90 PS (66 kW) at 8000 rpm
Max torque86 Nm at 6000 rpm
Compression ratio10,2 : 1
Valves per cylinder2
Valve controlDOHC, using drive chain and cup tappets
Carburation systemelectronic injection, Bosch LE-Jetronic
Engine lubricationwet sump
Power transmission
Clutchdry single plate
Number of gears5
Gear selectiondog-type gearbox (ratchet foot lever)
Gear ratios4,50 / 2,96 / 2,30 / 1,88 / 1,61 :1
Rear wheel ratio1 : 2,8 1
Bevel/crown wheel11 : 31 teeth
Electrical system
Alternator12 V / 460 W
Ignitionelectronic ignition Bosch LE-Jetronic
Starter0,7 kW
Spark plugsBosch XR 5 DC, Beru 12-5 DU, Champion A 85YC
Suspension
Type of frametubular space frame, engine serving as load-bearing component
Front suspensiontelescopic fork with hydraulic shock absorber
Rear suspensionBMW Monolever - swinging arm
Spring travel185 / 110 mm
Rims front2,50 x 18 MT H 2
Rims rear2,75 x 17 MT H 2
Tyres front100/90-V 18 or 100/90-VR 18
Tyres rear130/90-V 17 or 130/90-VR 17
Brakes frontdual-disc brake Ø 285 mm
Brakes rearsingle disc brake Ø 285 mm
Dimensions and weights
Length x width x height2220 x 800 x 1271 mm
Wheel base1516 mm
Ground clearance175 mm
Tank capacity22 l
Unladen weight, full tank249 kg
Max permissible weight480 kg
Fuel consumption4,3 l / 100 km ( at constant 90 km/h)
Acceleration0 - 100 km/h 4,3 s
Top speed220 km/h
