BMW R25/3 (1953)

Technical Specifications
1953 BMW R25/3
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, single cylinder vertical
68.0 x 68.0 mm (2.67 x 2.67 inches)
247 cc
OHV
7.0:1
13 HP @ 5800 rpm

1 x Bing type 1/24/41 or SAWE type K 24 F
4-speed, foot switching (+ auxiliary manual switch on gearing block)
Shaft
Single plate dry clutch
Battery ignition
Kick starter
Forced Feed Lubrication

Bosch W 240 T1
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)

Closed steel twin loop frame, welded

2065 mm (81.28 inches)
760 mm (29.92 inches)
730 mm (28.74 inches)
1365 mm (53.74 inches)
828 mm (32.6 inches)
185 mm (7.3 inches)
150 kg
12 litres

Telescopic fork
Pushrod suspension
3.25 R18
3.25 R18
Drum brake 160 mm / 6.29 inches diameter
Drum brake 160 mm / 6.29 inches diameter

Image: http://www.bmwvintagebike.com
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