BMW R61 (1938)

Technical Specifications
1938 BMW R61
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
Battery
Gear ratios

Air-cooled, Four-stroke two cylinder flat twin
70.0 x 78.0 mm (2.75 x 3.07 inches)
600 cc
SV
5.7:1
18 hp @ 4800 rpm

2 x carburettor type Amal M75/426 S
4-speed (foot shifting)
Cardan
Single plate saucer spring, dry
Battery ignition
Kick starter
Forced feed lubrication

Bosch W 175 T1
6 volt 12 amp hour
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)
1400mm (55.10 inches)
850 mm (33.50 inches)
165 mm (6.49 inches)
184 kg
14 litres

Telescopic fork
Telescopic suspension
3.50 R19
3.50 R19
Drum brake 200 mm / 7.87 in diameter
Drum brake 200 mm / 7.87 in diameter

Image: http://cybermotorcycle.com
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