BMW R71 (1938)

Technical Specifications
1938 BMW R71
Engine
Engine type
Bore x Stroke
Displacement
Valves
Compression ratio
Max Power
Max Torque
Fuel system
Transmission
Final drive
Clutch
Ignition type
Starting system
Lubrication
Exhaust
Spark plug
Generator
Gear ratios

Air-cooled, Four-stroke two cylinder flat twin
78.0 x 78.0 mm (3.07 x 3.07 inches)
746 cc
2 valves per cylinder; SV
5.5:1
22 hp @ 4600 rpm

2 carburettor Typ Graetzin G 24
4-speed; foot shifting (+ auxiliary manual lever on the gear block)
Cardan
Single plate, saucer spring, dry
Battery ignition
Kick starter
Forced feed lubrication

Bosch RD 50/6 2800 RS 17
Bosch W 175 T 1
Dimensions
Frame type
Castor
Overall length
Overall width
Overall height
Wheelbase
Seat height
Ground clearance
Dry weight
Fuel capacity
Colors
Suspension (front)
Suspension (rear)
Tyre (front)
Tyre (rear)
Brake (front)
Brake (rear)

Twin-loop steel tubular frame

2130 mm (83.85 inches)
815 mm (32.08 inches)
960 mm (37.79 inches)
1400 mm (55.11 inches)
807 mm (31.80 inches)
140 mm (5.51 inches)
187 kg
14 litres

Telescopic fork
Telescopic suspension
3.5 x R19
3.5 x R19
Drum brake 200 mm / 7.87 in diameter duplex full hub
Drum brake 200 mm / 7.87 in diameter duplex full hub

Image: http://m72.republika.pl/bmwr71.htm
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