Back to Bike FinderYears: 1954 · 1953 · 1952 · 1951
BMW R51 3
1953Allround

BMW R51 3

Key specifications

Engine
494 cc
Power
24 HP
Fuel type
petrol
Fuel capacity
4.5 L
Transmission
4-speed
Front brakes
Expanding brake (drum brake). Duplex full hub
Rear brakes
Expanding brake (drum brake). Simplex full hub

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)