Oldtimer picture gallery. Motorcycles. BMW R61.
BMW-R61
Years of production: 1938 - 1941
Overall production: 3747
Engine: 4-stroke sidevalve opposite
2-cyl., 600cc, 18hp/4800rpm
Bore/Stroke: 70/78 mm
Compression ratio: 5,7 : 1
Length: 2130mm, width: 815mm, height: 960mm
Wheelbase: 1400mm
Carburetters: 2 x Amal M 75/426 S
Forced feed lubrication
Clutch: dry single plate
Battery ignition
Generator: Bosch RD 50/6 2800 RS 17
Spark Plugs: Bosch W 175 T1
Gearbox: 4 speed
Ratios: I - 3,6; II - 2,28; III - 1,7; III - 1,3
Rear Wheel Ratio:
1 : 3,89 (9 : 35), sidecar 1 : 4,62 (8 : 37)
Tubular frame
Front fork: telescopic
Rear suspension: telescopic
Weight: 184 kg
Maximal speed: 115 km/h (solo) 100 km/h (with sidecar)
Tyres: 3,5x19 inches
Fuel capacity: 14 Ltr.
Fuel consumption: 3,5 Ltr/100km
Oil consumption: about 1 Ltr/100km
Price: 1420 RM
Photos are from:
eBay Deutschland.
Vintage BMW Motorcycle Owners Ltd..
Vintage-Imports.com
Most part of data have been kindly shared by Ton Goossens,
owner of 1939 BMW R61 from the Netherlands.
Thanks for corrections to Fredrik Grufman, Sweden.
The big color photo of BMW R61 is courtesy of Fredrik.
Entrance Gallery Motorcycles BMW Sale Links
Last updated 16 XII 2005. Andrei Bogomolov. Contact Information.
Wheelbase: 1400mm
Ratios: I - 3,6; II - 2,28; III - 1,7; III - 1,3
Tyres: 3,5x19 inches
Vintage-Imports.com