
BMW R51 3
Key specifications
Overview
### 1952 BMW R51 3: A Timeless Classic Introducing the 1952 BMW R51 3, a motorcycle that epitomizes the spirit of post-war engineering excellence. Positioned as an allrounder, the R51 3 stands as a testament to BMW's commitment to performance, reliability, and innovative design during a transformative era in motorcycling. With its captivating blend of classic aesthetics and robust engineering, this model appeals to both vintage enthusiasts and riders seeking a piece of history on two wheels. Known for its remarkable versatility, the R51 3 is designed to handle everything from leisurely rides through the countryside to spirited jaunts on the open road. At the heart of the R51 3 lies a 494cc two-cylinder boxer engine, delivering a respectable 24.07 horsepower at 5800 RPM. This four-stroke powerhouse propels the motorcycle to a top speed of 135 km/h (83.9 mph), allowing riders to enjoy thrilling moments on the road while maintaining a smooth and steady performance. The air-cooled engine, with its 6.3:1 compression ratio, is coupled with a 4-speed gearbox and a reliable shaft drive, ensuring efficient power transfer and a remarkably comfortable ride. Riders can expect an average fuel consumption of just 4.5 liters per 100 km (52.27 mpg), making the R51 3 not only a powerful machine but also an economical choice for long-distance journeys. The R51 3 boasts several key features that highlight BMW's engineering prowess. Its steel single cradle frame provides a sturdy foundation, while the cartridge front suspension and telescopic rear suspension work in harmony to deliver exceptional handling and comfort, even on uneven terrain. The braking system is equally impressive, equipped with duplex drum brakes at the front and simplex drum brakes at the rear, both measuring 200 mm in diameter. This combination ensures reliable stopping power, enhancing rider confidence. With a fuel capacity of 17 liters, the R51 3 is built for adventure, effortlessly covering long distances without frequent refueling stops. Additionally, the classic kick starter adds a nostalgic touch, appealing to riders who appreciate the traditional elements of motorcycling. **
Pros
- Timeless Design: The classic aesthetics and build quality make the R51 3 a standout piece for collectors and enthusiasts alike.
- Economical Performance: Excellent fuel consumption rates combined with a reliable engine make it a great choice for long rides.
- Comfortable Ride: Advanced suspension systems and sturdy frame contribute to a smooth and enjoyable riding experience.
Cons
- Limited Top Speed: While adequate for its time, modern riders may find the top speed less thrilling compared to contemporary motorcycles.
- Kick Start Only: The absence of an electric start may deter some riders who prefer modern conveniences.
- Heavy Weight: Weighing in at 190 kg (418.9 lbs), it may feel bulky for newer riders or those accustomed to lighter models.
Technical details
Source specification data
- Make
- BMW
- Model
- R51 3
- Category
- Allround
- Starter
- Kick
- Carrying Capacity
- 355kg-600kg with sidecar
- Power
- 24.07 HP (17.6 kW)) @ 5800 RPM
- Clutch
- Dry-single plate-cable operated
- Gearbox
- 4-speed
- Top Speed
- 135.0 km/h (83.9 mph)
- Fuel System
- Carburettor. 22mm
- Bore X Stroke
- 68.0 x 68.0 mm (2.7 x 2.7 inches)
- Compression
- 6.3:1
- Displacement
- 494.00 ccm (30.14 cubic inches)
- Cooling System
- Air
- Engine Details
- Two cylinder boxer, four-stroke
- Fuel Consumption
- 4.50 litres/100 km (22.2 km/l or 52.27 mpg)
- Greenhouse Gases
- O2
- g/km. (
- O2
- -
- Carbon
- dioxide emission)
- Lubrication System
- Wet sump
- Transmission Type Final Drive
- Shaft drive (cardan)
- Fuel Capacity
- 17.00 litres (4.49 gallons)
- Overall Width
- 790 mm (31.1 inches)
- Overall Height
- 985 mm (38.8 inches)
- Overall Length
- 2,130 mm (83.9 inches)
- Weight Incl Oil Gas Etc
- 190.0 kg (418.9 pounds)
- Rear Tyre
- 3.50-19.00
- Frame Type
- Steel single cradle
- Front Tyre
- 3.50-19.00
- Rear Brakes
- Expanding brake (drum brake). Simplex
- Front Brakes
- Expanding brake (drum brake). Duplex
- Rear Suspension
- Telscopic
- Front Suspension
- Cartridge
- Rear Brakes Diameter
- 200 mm (7.9 inches)
- Front Brakes Diameter
- 200 mm (7.9 inches)