BMW R52

BMW R 52

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