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

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)
Rear brakes
Expanding brake (drum brake)

Overview

Introducing the 1954 BMW R51/3: A Classic All-Rounder The 1954 BMW R51/3 stands as a testament to the engineering prowess of post-war Germany, offering enthusiasts a blend of classic style and robust performance. Positioned in the all-round category, this motorcycle was designed to cater to riders who sought versatility and reliability in their journeys, whether it was a leisurely ride through the countryside or a spirited trip along winding roads. With its iconic boxer engine, the R51/3 encapsulates the spirit of BMW's heritage, making it a coveted piece for collectors and riders alike. Engine Performance and Riding Characteristics At the heart of the R51/3 is a 494cc, two-cylinder boxer engine that delivers a charming 24.07 horsepower at 5,800 RPM. This four-stroke powerhouse, with a compression ratio of 6.3:1, generates enough torque to propel the motorcycle to a top speed of 135 km/h (83.9 mph). The air-cooled engine is mated to a four-speed gearbox and a shaft drive, providing smooth and reliable power delivery. Riders will appreciate the balanced handling and stability offered by the steel single cradle frame and telescopic rear suspension, making the R51/3 a pleasure to ride on various terrains. The motorcycle's weight of 190 kg (418.9 pounds) adds to its confidence-inspiring character, allowing for agile maneuverability even in urban settings. Key Features and Technology The R51/3 boasts several features that reflect the advanced engineering of its time. The 22mm carburettor fuel system ensures efficient fuel delivery while the dry single-plate cable-operated clutch guarantees smooth gear shifts. The 200mm drum brakes at both the front and rear provide ample stopping power, giving riders peace of mind during their travels. The motorcycle's classic design is complemented by a generous fuel capacity of 17 litres (4.49 gallons), allowing for extended riding without frequent pit stops. Additionally, the kick starter pays homage to the traditional way of bringing this beauty to life, evoking nostalgia for the golden age of motorcycling. **

Pros

    Cons

    • Iconic Boxer Engine: The two-cylinder boxer engine layout provides a unique riding experience with a low center of gravity, enhancing stability.
    • Versatile Riding Capabilities: The R51/3's robust design makes it suitable for various riding conditions, from city commuting to longer journeys.
    • Classic Aesthetic: The timeless styling and craftsmanship of the R51/3 turn heads and attract attention, making it a standout in any collection.
    • Limited Power Output: With only 24 horsepower, the R51/3 may feel underpowered compared to modern motorcycles, especially on highways.
    • Drum Brakes: While adequate for its time, the drum brakes may not provide the stopping power or responsiveness that contemporary riders expect.
    • Kick Starter Only: The absence of an electric starter can be less convenient, particularly for those unfamiliar with kick-starting techniques.

    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)
    Front Brakes
    Expanding brake (drum brake)
    Rear Suspension
    Telscopic
    Front Suspension
    Cartridge
    Rear Brakes Diameter
    200 mm (7.9 inches)
    Front Brakes Diameter
    200 mm (7.9 inches)