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BMW R 71

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Make Model

BMW R 71

Year

1938 - 41

Engine

Four stroke, two cylinder horizontally opposed Boxer, pushrod operated 2 valves per cylinder.

Capacity

746 cc / 45.5 cu in.
Bore x Stroke 78 x 78 mm
Compression Ratio

5.5:1

Cooling System Air cooled

Induction

2 x Graetzin G 24 carburetors

Ignition

Battery ignition

Starting

Kick

Clutch Single plate, dry

Max Power

16.4 kW / 22 hp @ 4600 rpm

Transmission

4 Speed

Final Drive

Shaft
Gear Ratio 1st 3.60 / 2nd 2.28 / 3rd 1.70 / 4th 1.30
Frame Twin loop steel tubular frame

Front Suspension

Telescopic front fork,

Rear Suspension

Telescopic suspension, plunger type

Front Brakes

200mm Drum duplex full hub

Rear Brakes

200mm Drum simplex full hub

Front Tyre

3.50 -19"

Rear Tyre

3.50 -19"

Wet-Weight

187 kg / 412 lbs

Fuel Capacity 

14 liters / 3.6 US gal
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