
BMW R25
Key specifications
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)