Back to Bike FinderYears: 1941 · 1940 · 1939 · 1938
BMW R61
1939Allround

BMW R61

Key specifications

Engine
600 cc
Power
18 HP
Fuel type
petrol
Fuel capacity
3.7 L
Transmission
4-speed
Front brakes
Expanding brake (drum brake). Single
Rear brakes
Expanding brake (drum brake)

Overview

Step back in time to 1939, when the BMW R61 carved its niche as a quintessential allround motorcycle that perfectly blended practicality with performance. Part of BMW's esteemed lineage, the R61 was designed to cater to a burgeoning post-war market, where riders sought a reliable companion for both leisurely jaunts and daily commutes. Its robust design and innovative engineering encapsulated the spirit of the era, making it a beloved classic among motorcycle enthusiasts and collectors alike. At the heart of the R61 lies a 600cc two-cylinder boxer engine that is as iconic as it is efficient. Producing a respectable 17.95 horsepower at 4800 RPM, this four-stroke powerhouse propels the motorcycle to a top speed of 115 km/h (71.5 mph) — impressive for its time. The combination of a 5.7:1 compression ratio and a dependable Amal carburettor ensures smooth throttle response and commendable fuel efficiency, averaging around 3.5 litres per 100 km (67.21 mpg). The R61's 4-speed gearbox and smooth shaft drive system provide a seamless riding experience, allowing enthusiasts to enjoy the road with a sense of confidence and control. True to BMW's reputation for engineering excellence, the R61 is equipped with a sturdy steel double cradle frame that provides stability and agility on various terrains. The motorcycle features leading link front suspension and twin shock swingarm rear suspension, which together deliver a comfortable and controlled ride. The braking system, with its 200 mm drum brakes at both the front and rear, offers reliable stopping power, ensuring safety on the open road. With a fuel capacity of 14 litres, the R61 is ready for those extended journeys, inviting riders to explore with ease. **

Pros

  • Timeless Design: The R61's classic styling and build quality make it a standout in any motorcycle collection, appealing to vintage enthusiasts.
  • Smooth Performance: The boxer engine provides a unique riding experience with a low center of gravity and excellent handling characteristics.
  • Fuel Efficiency: With impressive mileage for its time, the R61 allows for longer rides without frequent refueling stops.

Cons

  • Limited Power: While adequate for its era, the 17.95 HP may feel underwhelming compared to modern motorcycles.
  • Kick Starter Only: The absence of an electric starter can be challenging for some riders, especially in difficult conditions.
  • Weight: Weighing in at 184 kg (405.7 pounds), the R61 may be cumbersome for new or less experienced riders.

Technical details

Source specification data

Make
BMW
Model
R61
Category
Allround
Starter
Kick
Carrying Capacity
210kg
Power
17.95 HP (13.1 kW)) @ 4800 RPM
Clutch
Dry-single plate-cable operated
Gearbox
4-speed
Top Speed
115.0 km/h (71.5 mph)
Fuel System
Carburettor. Amal
Bore X Stroke
70.0 x 78.0 mm (2.8 x 3.1 inches)
Compression
5.7:1
Displacement
600.00 ccm (36.61 cubic inches)
Cooling System
Air
Engine Details
Two cylinder boxer, four-stroke
Fuel Consumption
3.50 litres/100 km (28.6 km/l or 67.21 mpg)
Greenhouse Gases
O2
g/km. (
O2
-
Carbon
dioxide emission)
Lubrication System
Wet sump
Transmission Type Final Drive
Shaft drive (cardan)
Fuel Capacity
14.00 litres (3.70 gallons)
Overall Width
815 mm (32.1 inches)
Overall Height
960 mm (37.8 inches)
Overall Length
2,130 mm (83.9 inches)
Weight Incl Oil Gas Etc
184.0 kg (405.7 pounds)
Seat
Solo seat with springs
Rear Tyre
3.50-19.00
Frame Type
Steel-double cradle
Front Tyre
3.50-19.00
Rear Brakes
Expanding brake (drum brake)
Front Brakes
Expanding brake (drum brake). Single
Rear Suspension
Twin shock-Swingarm
Front Suspension
Leading link
Rear Brakes Diameter
200 mm (7.9 inches)
Front Brakes Diameter
200 mm (7.9 inches)