
BMW R51 3
Key specifications
Overview
The 1953 BMW R51/3 stands as a timeless icon in the realm of classic motorcycles, embodying the spirit of post-war German engineering while captivating riders with its blend of performance and style. Positioned as an allround motorcycle, the R51/3 was designed to appeal to the adventurous spirit of the era, catering to both seasoned riders and newcomers alike. Its robust build and elegant design make it a standout piece in any collection, offering a nostalgic glimpse into the golden age of motorcycling. At the heart of the R51/3 lies a powerful two-cylinder boxer engine, boasting a displacement of 494 cc and capable of delivering 24.07 horsepower at 5,800 RPM. This four-stroke powerplant is characterized by its smooth operation and remarkable torque, allowing the bike to reach a top speed of 135 km/h (83.9 mph). The unique boxer configuration not only contributes to a low center of gravity, enhancing stability, but also results in a distinctive sound that is music to the ears of any motorcycle enthusiast. Coupled with a 4-speed gearbox and a reliable shaft drive, the R51/3 offers a riding experience that is both exhilarating and refined. The design and technology of the R51/3 are equally impressive, showcasing advanced features for its time. The steel single cradle frame provides a sturdy foundation, while the telescopic rear suspension and cartridge front suspension ensure a smooth ride over varying terrains. Stopping power is delivered through dependable drum brakes, with both front and rear featuring a generous 200 mm diameter, ensuring controlled handling. With a fuel tank capacity of 17 liters, the R51/3 is capable of longer journeys, making it an ideal companion for weekend getaways or leisurely rides through the countryside. **
Pros
- Timeless Design: The classic aesthetics and iconic boxer engine make the R51/3 a head-turner at any motorcycle gathering.
- Smooth Performance: The 494 cc engine offers a blend of power and torque, providing an enjoyable riding experience with excellent handling.
- Durability: Built with high-quality materials and engineering, the R51/3 is known for its reliability and longevity, making it a worthwhile investment for collectors.
Cons
- Limited Power: While the engine is smooth and capable, modern riders may find its 24.07 HP underwhelming compared to contemporary motorcycles.
- Heavy Weight: At 190 kg (418.9 lbs), the R51/3 may feel cumbersome for some riders, especially during low-speed maneuvers.
- Kicking Start Only: The absence of an electric starter means that riders must rely on the kick-start mechanism, which can be a challenge for those unfamiliar with it.
Technical details
Source specification data
- Make
- BMW
- Model
- R51 3
- Category
- Allround
- Starter
- Kick
- 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
- 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
- full hub
- Front Brakes
- Expanding
- brake (drum brake).
- Duplex
- full hub
- Rear Suspension
- Telscopic
- Front Suspension
- Cartridge
- Rear Brakes Diameter
- 200 mm (7.9 inches)
- Front Brakes Diameter
- 200 mm (7.9 inches)