BMW R 69

BMW R 69 Date 1955 - 1960

Number sold 2.956

Price 3.950,- DM

Engine

internal designation 268 / 2
engine type four-stroke two-cylinder flat-twin
Bore/stroke 72 x 73 mm
Cubic capacity 594 cm3
Max power 35 PS at 6800 U /min
Compression ratio 7,5 : 1
Valves per cylinder ohv
Carburation system 2 carburettor Typ Bing 1/26/9 - 1/26/10
Engine lubrication forced-feed lubrication
oil pump gear pump

 
Power transmission

Clutch single disc saucer spring, dry
Number of gears 4
shifting foot shifting
Gear ratios 5,33 / 3,02 / 2,04 / 1,54
Rear wheel ratio 1 : 3,18 (with sidecar 1 : 4,25 or 1 : 4,33)
Bevel/crown wheel 11 / 35 teeth (with sidecar 8 / 34 or 6 : 26)

 
Electrical system

Alternator Noris L 60/6/1500 L
Ignition magneto ignition
Spark plugs Bosch W 240 T 1

 
Suspension

designation 245/1
Type of frame twin-loop steel tubular frame
Front suspension long swinging arm with strut und oil-pressure shock absorbers
Rear suspension long swinging arm with strut und oil-pressure shock absorbers
wheel rims deep-bed 3 x 18 ( at sidecar, rear 2,75C x 18)
Tyres front 3,50 x 18
Tyres rear 3,50 x 18 ( at sidecarbetrieb hinten 4 x 18)
Brakes front drum brake, 200 mm Duplex full hub
Brakes rear drum brake, 200 mm Simplex full hub

 
Dimensions and weights

Length x width x height 2125 x 722 x 980 mm
Wheel base 1415 mm (with sidecar 1450 mm)
Tank capacity 17 l
Unladen weight, full tank 202 kg (with orig. BMW sidecar 320 kg)
load rating 360 kg (with orig. BMW sidecar 600 kg)
idle/riding noise 85 / 83 phon (from 16.12.1955: 83 / 76 phon)
Fuel consumption ca. 3,6 l / 100 km
oil consumption ca. 0,5 - 1 l / 1000 km
Top speed 165 km/h