BMW R25 3 1955 - Specifications & Review
Article Complete Info
| Articleid | 697578 |
|---|---|
| Category | Allround |
| Make | BMW |
| Model | R25 3 |
| Year | 1955 |
Chassis, Suspension, Brakes & Wheels
| Frametype | Closed steel loop-welded |
|---|---|
| Frontbrakes | Expanding brake (drum brake) |
| Frontbrakesdiameter | 160 mm (6.3 inches) |
| Frontsuspension | Cartridge |
| Fronttyre | 3.27-18 |
| Rearbrakes | Expanding brake (drum brake) |
| Rearbrakesdiameter | 160 mm (6.3 inches) |
| Rearsuspension | Telscopic |
| Reartyre | 3.27-18 |
Engine & Transmission
| Borexstroke | 68.0 x 68.0 mm (2.7 x 2.7 inches) |
|---|---|
| Clutch | Single plate dry-cable operated |
| Compression | 7.1:1 |
| Coolingsystem | Air |
| Displacement | 247.00 ccm (15.07 cubic inches) |
| Enginedetails | Single cylinder, four-stroke |
| Fuelconsumption | 2.90 litres/100 km (34.5 km/l or 81.11 mpg) |
| Fuelsystem | Carburettor. Bing |
| Gearbox | 4-speed |
| Greenhousegases | 67.3 CO2 g/km. (CO2 - Carbon dioxide emission) |
| Ignition | Battery |
| Lubricationsystem | Wet sump |
| Power | 13.05 HP (9.5 kW)) @ 5800 RPM |
| Topspeed | 88.0 km/h (54.7 mph) |
| Transmissiontypefinaldrive | Shaft drive (cardan) |
Other Specifications
| Carryingcapacity | 320kg |
|---|---|
| Starter | Kick |
Physical Measures & Capacities
| Fuelcapacity | 12.00 litres (3.17 gallons) |
|---|---|
| Groundclearance | 92 mm (3.6 inches) |
| Overallheight | 710 mm (28.0 inches) |
| Overalllength | 2,065 mm (81.3 inches) |
| Overallwidth | 760 mm (29.9 inches) |
| Seatheight | 730 mm (28.7 inches) If adjustable, lowest setting. |
| Weightincloilgasetc | 150.0 kg (330.7 pounds) |
About BMW R25 3 1955
Introducing the 1955 BMW R25/3: A Timeless Classic
The 1955 BMW R25/3 stands as a remarkable embodiment of post-war motorcycle engineering, representing the pinnacle of BMW's allround category during its time. With its elegant lines and robust build, this motorcycle appeals to enthusiasts who appreciate a blend of historical significance and mechanical reliability. As a quintessential example of mid-20th century German craftsmanship, the R25/3 is not just a means of transport; it's a piece of motorcycling history that has earned its place in the hearts of collectors and riders alike.
Engine Performance and Riding Characteristics
At the heart of the R25/3 lies a spirited 247cc single-cylinder, four-stroke engine, which produces a respectable 13.05 horsepower at 5,800 RPM. This power output translates into a top speed of 88 km/h (54.7 mph), making it well-suited for leisurely rides through scenic countryside or city streets. The engine’s air-cooling system and efficient Bing carburettor contribute to its user-friendly nature, allowing riders to enjoy an impressive fuel consumption rate of just 2.90 litres per 100 km (approximately 81.11 mpg). The 4-speed gearbox, paired with a shaft drive, offers smooth power delivery and minimal maintenance, ensuring that the ride is both enjoyable and reliable.
Key Features and Technology
The R25/3 features a closed steel loop-welded frame, providing strength and stability while maintaining a modest weight of 150 kg (330.7 pounds). Its compact dimensions—including a seat height of 730 mm (28.7 inches)—make it accessible for riders of various sizes. The front and rear drum brakes, each with a diameter of 160 mm (6.3 inches), deliver dependable stopping power. The motorcycle is equipped with telescopic rear suspension and cartridge front suspension, which contribute to a comfortable ride over diverse terrains. Additionally, the kick starter adds a nostalgic touch, reflecting the era's mechanical charm while also providing reliability in starting the engine.
Pros and Cons of the BMW R25/3
Pros:
- Fuel Efficiency: With a remarkable fuel consumption of 2.90 litres per 100 km, the R25/3 is economical for long rides.
- Classic Design: Its vintage aesthetics and robust build make it a sought-after collectible among motorcycle enthusiasts.
- User-Friendly Performance: The single-cylinder engine and smooth shaft drive make it approachable for both novice and experienced riders.
Cons:
- Limited Top Speed: The maximum speed of 88 km/h may not satisfy those seeking high-performance thrills.
- Drum Brakes: While adequate for its time, the drum braking system may feel less responsive compared to modern disc brakes.
- Kick Start: The absence of an electric start can be a drawback for those accustomed to the convenience of modern motorcycles.
In summary, the 1955 BMW R25/3 is a charming and practical motorcycle that provides a delightful ride while encapsulating the essence of its era. Whether you’re a collector or a rider looking for a classic experience, this motorcycle delivers both character and performance.