BMW R37 (1925)

Technical Specifications
1925 BMW R37
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, 4-stroke, two cylinder flat twin
68.0 x 68.0 mm (2.67 x 2.67 inches)
494 cc
OHV
6.2:1
16 HP @ 4000 rpm

1 carburettor Type BMW Spezial  three valve 26 mm
3-speed
Cardan
Single plate dry clutch
Bosch magneto ignition
Kick starter
Lubrication by gear pump in sump

Bosch W 175
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 tubular frame

2100 mm (82.67 inches)
800 mm (31.49 inches)
950 mm (37.40 inches)
1380 mm (54.33 inches)
785 mm
185 mm (7.3 inches)
134 kg
14 litres

Twin cantilever spring
Rigid
3.25 / 3.50 x 18 Cross Country
3.25 / 3.50 x 18 Cross Country
Drum brake 150 mm / 5.90 indiameter
Block brake

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