BMW K 100 RT

BMW K 100 RT Date 1984-1989

Number sold 22.335

Price 15.600,- 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 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 : 2,91
Bevel/crown wheel 11 : 32 teeth

 
Electrical system

Alternator 12 V 460W
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 - 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
Brakes rear single disc brake 285 mm

 
Dimensions and weights

Length x width x height 2220 x 920 x 1155 mm
Wheel base 1516 mm
Ground clearance 175 mm
Tank capacity 22 l
Unladen weight, full tank 253 kg
Max permissible weight 480 kg
Fuel consumption 4,4 l / 100 km ( at constant 90 km/h)
Acceleration 0 - 100 km/h 4,1 s
Top speed 215 km/h