BMW R25
1950Allround

BMW R25

Key specifications

Engine
247 cc
Power
12 HP
Fuel type
petrol
Fuel capacity
3.2 L
Transmission
4-speed
Front brakes
Expanding brake (drum brake)
Rear brakes
Expanding brake (drum brake)

Overview

### Introducing the 1950 BMW R25: A Timeless Classic The 1950 BMW R25 stands as a testament to the elegance and engineering prowess of post-war motorcycle design. This all-rounder motorcycle carved its niche for enthusiasts and daily riders alike, appealing to those who sought reliability and simplicity in their rides. With its classic lines and understated charm, the R25 is not just a motorcycle; it’s a piece of history that embodies the spirit of the era. BMW’s commitment to quality craftsmanship and innovative engineering is evident in every aspect of this two-wheeled marvel. ### Engine Performance and Riding Characteristics Under the sleek exterior of the R25 lies a robust 247cc single-cylinder, four-stroke engine that delivers a respectable 12 horsepower at 5600 RPM. This powerplant, characterized by its reliable air-cooling and simple carburettor setup, provides a top speed of approximately 80 km/h (49.7 mph) — ample for leisurely rides through winding roads and city streets. The 4-speed gearbox, paired with a traditional shaft drive, ensures smooth transitions and a responsive ride. Riders will appreciate the R25's frugal fuel consumption of just 3.50 liters per 100 km, making it an economical choice for the everyday commuter and weekend adventurer alike. ### Key Features and Technology The 1950 R25 is not just about performance; it also boasts a range of features that enhance its appeal. The steel single cradle frame provides a sturdy foundation, while the cartridge front suspension and pushrod rear suspension offer a balanced ride, even on less-than-perfect surfaces. With drum brakes on both the front and rear, riders can expect reliable stopping power, complemented by an approachable weight of 140 kg (308.6 lbs) that contributes to its nimbleness. The iconic kick-start mechanism harks back to a simpler time, inviting riders to engage with their machines in a tactile and rewarding way. ###

Pros

    Cons

    • Classic Aesthetics: The R25’s timeless design appeals to vintage motorcycle enthusiasts and collectors alike.
    • Fuel Efficiency: With a consumption rate of around 67.21 mpg, this bike is kind to your wallet and the environment.
    • Reliable Performance: The simple engine design and shaft drive ensure low maintenance and dependable performance.
    • Limited Power: The 12 HP output may feel underwhelming for those accustomed to modern motorcycles with higher performance.
    • Basic Technology: The R25 lacks advanced features such as electric start or modern suspension systems, which may deter some riders.
    • Weight Distribution: While manageable, the weight and design may not suit riders looking for a more aggressive or sporty riding experience.

    Technical details

    Source specification data

    Make
    BMW
    Model
    R25
    Category
    Allround
    Starter
    Kick
    Carrying Capacity
    290
    Power
    12.00 HP (8.8 kW)) @ 5600 RPM
    Clutch
    Single plate dry-cable operated
    Gearbox
    4-speed
    Ignition
    Battery
    Top Speed
    80.0 km/h (49.7 mph)
    Fuel System
    Carburettor. Bing
    Bore X Stroke
    68.0 x 68.0 mm (2.7 x 2.7 inches)
    Compression
    6.5:1
    Displacement
    247.00 ccm (15.07 cubic inches)
    Cooling System
    Air
    Engine Details
    Single cylinder, four-stroke
    Fuel Consumption
    3.50 litres/100 km (28.6 km/l or 67.21 mpg)
    Greenhouse Gases
    O2
    g/km. (
    O2
    -
    Carbon
    dioxide emission)
    Lubrication System
    Wet sump
    Transmission Type Final Drive
    Shaft drive (cardan)
    Fuel Capacity
    12.00 litres (3.17 gallons)
    Overall Width
    750 mm (29.5 inches)
    Overall Height
    710 mm (28.0 inches)
    Overall Length
    2,073 mm (81.6 inches)
    Ground Clearance
    92 mm (3.6 inches)
    Weight Incl Oil Gas Etc
    140.0 kg (308.6 pounds)
    Rear Tyre
    3.25-19
    Frame Type
    Steel-single cradlel
    Front Tyre
    3.25-19
    Rear Brakes
    Expanding brake (drum brake)
    Front Brakes
    Expanding brake (drum brake)
    Rear Suspension
    Pushrod
    Front Suspension
    Cartridge
    Rear Brakes Diameter
    160 mm (6.3 inches)
    Front Brakes Diameter
    160 mm (6.3 inches)