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BMW R50
1955Allround

BMW R50

Key specifications

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

Overview

Introducing the 1955 BMW R50: A Timeless Classic In the mid-1950s, the motorcycle landscape was rapidly evolving, but the 1955 BMW R50 stood out with its unique blend of engineering excellence and classic charm. Positioned as an allrounder, the R50 was designed to cater to both the daily commuter and the weekend adventurer. With its iconic boxer engine and elegant lines, it captured the hearts of riders who appreciated not just performance, but also the distinctive style that BMW is renowned for. As a quintessential example of German craftsmanship, the R50 remains a sought-after classic among motorcycle enthusiasts and collectors alike. Engine Performance and Riding Characteristics At the heart of the R50 lies a robust air-cooled, two-cylinder boxer engine that displaces 494cc and produces a respectable 25.97 horsepower at 5800 RPM. This engine configuration not only delivers smooth power delivery but also contributes to the motorcycle's low center of gravity, enhancing stability during rides. Riders can expect a top speed of 140 km/h (87.0 mph), making it a capable machine for both highway cruising and city commuting. The 4-speed gearbox complements the engine well, allowing for seamless shifts and an enjoyable riding experience. With a fuel consumption of just 4.1 liters per 100 km, the R50 is remarkably efficient, making it a practical choice for those long rides through the countryside. Key Features and Technology The 1955 R50 showcases a steel double loop tubular frame, coupled with a combination of drum brakes and twin-shock swingarm rear suspension, ensuring a balanced ride that can handle various road conditions with ease. The expanding drum brakes—200 mm in diameter both front and rear—provide dependable stopping power, instilling confidence in riders navigating through the bustling streets or winding mountain roads. Notably, the bike features a kick starter, emphasizing a nostalgic touch that many classic enthusiasts cherish. With its elegant dimensions of 2,125 mm in length, 660 mm in width, and a height of 980 mm, the R50 is compact yet comfortable, making it an ideal fit for riders of different sizes. **

Pros

    Cons

    • Classic Design: The R50's timeless aesthetics and BMW's signature boxer engine make it a standout motorcycle.
    • Fuel Efficiency: With a consumption rate of 57.37 mpg, it’s a frugal choice for long rides.
    • Stability and Comfort: The low center of gravity and sophisticated suspension system contribute to a smooth riding experience.
    • Limited Power: At 25.97 HP, some riders may find it underpowered compared to modern motorcycles.
    • Drum Brakes: While effective for their time, the drum brakes may lack the stopping power and responsiveness of contemporary disc brakes.
    • Kick Starter Only: The absence of an electric start may deter some riders who prefer the convenience of modern technology.

    Technical details

    Source specification data

    Make
    BMW
    Model
    R50
    Category
    Allround
    Starter
    Kick
    Carrying Capacity
    360kg-with sidecar 600kg
    Power
    25.97 HP (19.0 kW)) @ 5800 RPM
    Clutch
    Dry-single plate-cable operated
    Gearbox
    4-speed
    Ignition
    Magneto
    Top Speed
    140.0 km/h (87.0 mph)
    Fuel System
    Carburettor. 24mm Bing
    Bore X Stroke
    68.0 x 68.0 mm (2.7 x 2.7 inches)
    Compression
    6.8:1
    Displacement
    494.00 ccm (30.14 cubic inches)
    Cooling System
    Air
    Engine Details
    Two cylinder boxer, four-stroke
    Fuel Consumption
    4.10 litres/100 km (24.4 km/l or 57.37 mpg)
    Greenhouse Gases
    O2
    g/km. (
    O2
    -
    Carbon
    dioxide emission)
    Lubrication System
    Wet sump
    Transmission Type Final Drive
    Shaft drive (cardan)
    Overall Width
    660 mm (26.0 inches)
    Overall Height
    980 mm (38.6 inches)
    Overall Length
    2,125 mm (83.7 inches)
    Weight Incl Oil Gas Etc
    195.0 kg (429.9 pounds)
    Seat
    Single seat
    Rear Tyre
    3.50-18
    Frame Type
    Steel doble loop tubular
    Front Tyre
    3.50-18
    Rear Brakes
    Expanding
    brake (drum brake).
    Simplex
    full hub
    Front Brakes
    Expanding
    brake (drum brake).
    Duplex
    full hub
    Rear Suspension
    Twin shock-Swingarm
    Front Suspension
    Cartridge
    Rear Brakes Diameter
    200 mm (7.9 inches)
    Front Brakes Diameter
    200 mm (7.9 inches)