BMW R52 (1928-29)

Make Model: BMW R 52


Year: 1928 – 29
Engine: Four stroke, two cylinder horizontally opposed Boxer, pushrod operated 2 valves per cylinder.
Capacity: 486 cc / 29.7 cu in.
Bore x Stroke: 63 x 78 mm
Compression Ratio: 5.0:1
Cooling System: Air cooled
Induction: 1 x Spezial 2 valve 22 mm carburator
Starting: Kick
Ignition: Bosch high voltage magneto ignition
Clutch: Single plate, dry
Max Power: 8.9 kW / 12 hp @ 3400 rpm
Transmission / Drive: 3 Speed
Final Drive: Shaft
Gear Ratio: 1st 2.83 / 2nd 1.55 / 3rd 1.08:1
Frame: Twin loop steel tubular frame
Front Suspension: Plate spring, 6 laminae
Rear Suspension: Rigid, spring loaded saddle
Front Brakes: 150mm Drum
Rear Brakes: Block brake
Front Tyre: 26 x 3.5″ low pressure or 26 x 3.5″ high pressure
Rear Tyre: 26 x 3.5″ low pressure or 26 x 3.5″ high pressure

Wet-Weight: 152 kg / 334 lbs
Fuel Capacity: 12.5 liters / 3.3 US gal


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