
BMW R61
Key specifications
Overview
### Introducing the 1940 BMW R61: A Classic Allrounder The 1940 BMW R61 stands as a testament to the ingenuity of mid-20th-century motorcycle engineering. As part of the revered BMW lineage, this model is often celebrated for its solid construction and versatile performance, making it a quintessential allround motorcycle of its time. Positioned for both the casual rider and the more adventurous enthusiast, the R61 captures the spirit of the era with its iconic design and robust engineering. Whether you’re gliding through the countryside or navigating city streets, this classic motorcycle promises a ride steeped in history and character. ### Engine Performance and Riding Characteristics At the heart of the R61 is its impressive 600cc two-cylinder boxer engine. This four-stroke powerhouse delivers a spirited 17.95 horsepower at 4,800 RPM, translating into a top speed of 115 km/h (71.5 mph). The unique boxer configuration not only contributes to a low center of gravity, enhancing stability, but also provides a distinctive sound that motorcycle lovers adore. With a compression ratio of 5.7:1 and a fuel-efficient consumption of just 3.50 litres per 100 km, the R61 offers both performance and practicality—ideal for spirited rides without frequent fuel stops. The 4-speed gearbox and shaft drive further elevate the riding experience, providing smooth power delivery and minimal maintenance hassle. ### Key Features and Technology The R61 is equipped with technology that was advanced for its time, including a steel double cradle frame that enhances durability and handling. The leading link front suspension combined with a twin-shock swingarm at the rear ensures a comfortable ride over varying terrains. The motorcycle features drum brakes front and rear, providing reliable stopping power when needed. Additionally, the 14-liter fuel tank not only offers adequate range but also complements the bike's classic aesthetic. Riders will appreciate the kick starter, a nod to the old-school charm that feels right at home in the vintage motorcycle community. ###
Pros
Cons
- Timeless Design: The R61's classic lines and boxer engine configuration create an iconic look that turns heads and sparks nostalgia among enthusiasts.
- Reliable Performance: With a well-balanced engine and smooth transmission, this motorcycle delivers a reliable riding experience, whether on leisurely rides or longer journeys.
- Fuel Efficiency: The impressive fuel consumption rate makes the R61 an economical choice for vintage motorcycle lovers, ensuring you can enjoy longer rides with fewer stops.
- Limited Power: With only 17.95 HP, the R61 may struggle to keep up with modern traffic, making it less suitable for highway cruising in today's fast-paced environment.
- Basic Braking System: The drum brakes, while functional, may not provide the same level of stopping power and responsiveness as modern disc brakes, potentially affecting rider confidence.
- Kick Start Only: The absence of an electric starter may deter some riders who prefer the convenience of modern starting systems, especially in cold weather or difficult conditions.
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