
BMW R61
Key specifications
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)