Engine
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Internal Designation
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252 / 2
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Engine type
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four-stroke two-cylinder flat-twin
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Bore/stroke
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68 x 68 mm
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Cubic capacity
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494 cm3
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Max power
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26 PS at 5800 rpm
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Compression ratio
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7,5 : 1
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Valves per cylinder
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ohv
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Carburation system
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2 carburettor Typ Bing 1/24/45-46 or 1/24/131-132 or 1/24/149-150
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Engine lubrication
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forced-feed lubrication
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Oil pump
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gear pump
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Power transmission
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Clutch
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single disc saucer spring, dry
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Number of gears
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4
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Shifting
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foot Shifting
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Gear ratios
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4,17 / 2,73 / 1,94 / 1,54 (with sidecar: 5,33 / 3,02 / 2,04 / 1,54)
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Rear wheel ratio
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1 : 3,18 (with sidecar 1 : 4,25 or 1 : 4,33)
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Bevel/crown wheel
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11 / 35 teeth (with sidecar 8 / 34 or 6 : 26)
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Electrical system
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Alternator
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Bosch LJ/CGE 60/6/1700 R
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Ignition
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magneto ignition
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Spark plugs
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Bosch W 240 T 1 or Beru 240 / 14
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Suspension
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Designation
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245/1
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Type of frame
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twin-loop steel tubular frame
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Front suspension
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long swinging arm with strut und oil-pressure shock absorbers
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Rear suspension
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long swinging arm with strut und oil-pressure shock absorbers
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wheel rims
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deep-bed 3 x 18 ( at sidecar, rear 2,75C x 18)
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Tyres front
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3,50 x 18
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Tyres rear
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3,50 x 18 ( at sidecarbetrieb hinten 4 x 18)
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Brakes front
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drum brake, Ø 200 mm Duplex full hub
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Brakes rear
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drum brake, Ø 200 mm Simplex full hub
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Dimensions and weights
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Length x width x height
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2125 x 660 x 980 mm
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Wheel base
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1415 mm (with sidecar 1450 mm)
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Tank capacity
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17 l
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Unladen weight, full tank
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195 kg (with orig. BMW sidecar 320 kg)
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Load rating
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360 kg (with orig. BMW sidecar 600 kg)
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idle/riding noise
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82 / 76 phon, (from Juni 1967: 72 dB(A), 84 dB(A))
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Fuel consumption
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ca. 5,1 l / 100 km
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Oil consumption
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ca. 0,5 - 1 l / 1000 km
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Top speed
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140 km/h (with sidecar 100 km/h)
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