BMW R66 (1938)

Technical Specifications
1938 BMW R66
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
69.8 x 78.0 mm (2.75 x 3.07 inches)
597 cc
2 valves per cylinder; OHV
6.8:1
30 hp @ 5300 rpm

2 x carburettor type Amal 6/420 S
4-speed; Foot switching (+ auxiliary manual lever), manual gear lever on request
Cardan
Dry single plate
Battery ignition
Kick starter
Forced feed lubrication

Bosch W 225 T1
Bosch RD 50/6 2800 R 17
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) 2130 x 815 x 960 mm (83.85 x 32.08 x 37.79 in)
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
Drum brake 200 mm/7.87 in diameter

Image: http://www.flickriver.com/photos/42220073@N04/8288020782/
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