Production Model Years
1938 - 1941
Frame and Engine Numbers
505001 - 515164
607001 - 607340
———
603001 - 606080
607001 - 607340
Model Specifications
Drivetrain
Displacement 596cc
Cylinders 2
Bore x Stroke (mm) 70 x 78
HP @ RPM 18 @ 4800
Compression Ratio 5.7:1
Valves OHV, 2 per cylinder
Clutch Dry, single plate, cable operated
Transmission 4 speed, foot shifted
Final Drive Driveshaft
Running Gear
Frame Tubular steel double cradle
Front Suspension Hydraulically damped telescopic fork
Rear Suspension Plunger
Front Brakes 200mm drum, single leading shoe
Rear Brakes 200mm drum, single leading shoe
Electrical
Ignition Battery/coil
Spark Plugs Bosch W175
Generator Bosch RD 45/6 6V 45/70W (early) RD 50/6 6V 50/75W (late)
Capacities & Measurements
Weight 184kg
Fuel 14l
Wheelbase 1400mm
Top Speed 115kph
Number Produced 3420

Second range of frame and engine numbers were built in 1941 and came from the factory with matching numbers.

Comments

R61 (and R71) are Sidevalve engines, not OHV

DanMay's picture

I see the R61 and R71 are listed as OHV engines. They are actually side valve engines.

PreviewAttachmentSize
r_61_engine.jpg
r_61_engine.jpg49.01 KB

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