BMW R12 Single Carb 1939 - Specifications & Review
Article Complete Info
| Articleid | 336939 |
|---|---|
| Category | Allround |
| Make | BMW |
| Model | R12 Single Carb |
| Year | 1939 |
Chassis, Suspension, Brakes & Wheels
| Frametype | Steel-pressed-loop |
|---|---|
| Frontbrakes | Expanding brake (drum brake) |
| Frontbrakesdiameter | 200 mm (7.9 inches) |
| Frontsuspension | Telescopic fork |
| Fronttyre | 3.5-19 |
| Rearbrakes | Expanding brake (drum brake) |
| Rearbrakesdiameter | 200 mm (7.9 inches) |
| Rearsuspension | Rigid- |
| Reartyre | 3.5-19 |
| Seat | Single seat |
Engine & Transmission
| Borexstroke | 78.0 x 78.0 mm (3.1 x 3.1 inches) |
|---|---|
| Compression | 5.2:1 |
| Displacement | 745.00 ccm (45.46 cubic inches) |
| Enginedetails | Two cylinder boxer, four-stroke |
| Fuelconsumption | 3.40 litres/100 km (29.4 km/l or 69.18 mpg) |
| Fuelsystem | Carburettor. CK 25mm |
| Greenhousegases | 78.9 CO2 g/km. (CO2 - Carbon dioxide emission) |
| Ignition | Magneto |
| Lubricationsystem | Forced feed |
| Power | 18.00 HP (13.1 kW)) @ 3400 RPM |
| Topspeed | 110.0 km/h (68.4 mph) |
Other Specifications
| Starter | Kick |
|---|
Physical Measures & Capacities
| Fuelcapacity | 14.00 litres (3.70 gallons) |
|---|---|
| Overallheight | 940 mm (37.0 inches) |
| Overalllength | 2,100 mm (82.7 inches) |
| Overallwidth | 900 mm (35.4 inches) |
About BMW R12 Single Carb 1939
1939 BMW R12 Single Carb: A Classic Icon of Engineering Excellence
Step back in time to 1939, a year when the world was on the brink of transformation, and so was the motorcycle industry. Enter the BMW R12 Single Carb, a masterpiece that epitomizes the all-rounder category of motorcycles. Crafted with precision and imbued with the spirit of innovation, the R12 quickly became a symbol of quality and performance. Designed for riders who seek versatility, this motorcycle strikes an exquisite balance between everyday usability and spirited riding, making it a timeless treasure for enthusiasts and collectors alike.
At the heart of the R12 lies a robust 745cc two-cylinder boxer engine, delivering 18 horsepower at 3400 RPM. This four-stroke powerhouse, with its distinctive configuration, not only offers a unique aesthetic but also provides a smooth and steady power delivery that enhances the riding experience. Capable of reaching a top speed of 110 km/h (68.4 mph), the R12 is perfect for both leisurely rides and more spirited jaunts. The engine's 5.2:1 compression ratio and efficient CK 25mm carburettor provide excellent fuel economy, enabling riders to enjoy up to 69.18 miles per gallon—an impressive feat for any motorcycle of its era.
The R12’s chassis is a marvel in its own right, showcasing a sturdy steel-pressed-loop frame that ensures stability and durability on various terrains. The telescopic front fork suspension offers a comfortable ride, absorbing shocks from the road, while the rigid rear suspension maintains a solid connection with the pavement. Both front and rear drum brakes with a diameter of 200mm allow for reliable stopping power, a crucial feature for safety in any riding condition. The motorcycle's classic lines, complemented by a 14-litre fuel tank and elegant design, make it a visual delight that resonates with the nostalgia of the bygone era.
#### Pros and Cons of the 1939 BMW R12 Single Carb
Pros:
- Timeless Design: Its classic aesthetic and vintage charm make it a standout piece for collectors and enthusiasts.
- Reliable Performance: The boxer engine offers an engaging ride with smooth power delivery and impressive fuel efficiency.
- Versatile Handling: The combination of front telescopic forks and rear rigid suspension provides a balance of comfort and road feedback.
Cons:
- Limited Speed: While adequate for leisure riding, the top speed may not satisfy those seeking high-performance capabilities.
- Kick Start Only: The absence of an electric starter may be a drawback for some riders, especially in urban settings.
- Maintenance Requirements: As with many vintage bikes, upkeep can be demanding, requiring specialized knowledge and parts that may not be readily available.
In summary, the 1939 BMW R12 Single Carb remains a cherished piece of motorcycle heritage, embodying a blend of style, reliability, and engineering prowess that continues to captivate the hearts of riders around the world.