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Adler Motorcycles

1956-1957 Adler MBS250S Sprinter

Specifications

Engine:
Air cooled two-stroke twin, 247cc, B/S 54x54mm
Compression ratio 5.75:1

Bing 2/22/128 carburettor
multi-plate clutch in oil bath
two ignition coils

Power: 18 HP

Lubrication: 25:1 petroil mixture.

Gearbox: 4 speed with neutral indicator
oil capacity: 1.2 litres

Gearbox

    4 speed with neutral indicator
    Oil capacity: 1.2 litres
    Gearshift lever on left side of engine
    Shift pattern: 4 up - neutral, 1st, 2nd, 3rd, 4th.
    1st gear = 2.80:1
    2nd gear = 1.53:1
    3rd gear = 1.11:1
    4th gear = 0.81:1
    primary drive = 3.44:1
    final drive = 2.0:1 (solo), 2.25:1 (sidecar)
    NB: All MB/MBS models have same gearbox and gear ratios.

Max speed: 126 km/h Wheels and

Brakes:
Rims: front: 1.85" x 18" steel rim, 36 spokes; rear : 2.25" x 18" steel rim , 36 spokes.
Large diameter alloy hubs.

Brakes: 150mm 30mm

Tyres: front: 3.25x18", rear: 3.50x18"

Maximum all-up weight : 295 kg

Frame: double loop steel tube.

Fuel tank: rubber mounted 15 litre with 3 litre reserve.

Rear suspension: swing arm with telescopic hydraulic spring dampers.

Front suspension: leading link with integral damping.

Electrical system: 6 volt 60 watt flywheel magneto

Steering lock.

Speedometer with odometer and trip meter.

Lockable toolbox.
Adjustable steering damper.
Enclosed rear chain.
Folding rear guard.
Two mufflers with removable baffles .



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