R52 | Vintage BMW Motorcycle Owners

Production Model Years

1928 - 1929

Frame and Engine Numbers

20000 - 30600 / 47001 - 51383

Model Specifications
Drivetrain
Displacement	486cc
Cylinders	2
Bore x Stroke (mm)	63 x 78
HP @ RPM	12 @ 3400
Compression Ratio	5.0:1
Valves	Sidevalve, 2 per cylinder
Clutch	Dry, single plate (dual plate from engine #50761), cable operated
Transmission	3 speed, hand shifted
Final Drive	Driveshaft
Running Gear
Frame	Tubular double loop, brazed
Front Suspension	Undamped, trailing link, leaf spring
Rear Suspension	Rigid
Front Brakes	200mm drum, single leading shoe
Rear Brakes	Contracting shoe drum on driveshaft, heel operated
Electrical
Ignition	Bosch magneto
Spark Plugs	Bosch M175
Generator	Optional Bosch D2 type magneto/generator, 6V 45W
Capacities & Measurements
Weight	152kg
Fuel	12.5l
Wheelbase	1400mm
Top Speed	100kph
Number Produced	4377

Comments

Submitted by dooox on Thu, 03/30/2017 - 23:36.

I have all these original parts in a great shape
Please e-mail me directly for more info and more pictures
dooox@aol.com
714-720-4008

I have more detail pictures

Submitted by dooox on Thu, 03/30/2017 - 23:39.

R51/52 Pre War

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