
BMW R57
Key specifications
Overview
Introducing the 1930 BMW R57, a remarkable embodiment of early 20th-century engineering prowess that continues to captivate motorcycle enthusiasts and collectors alike. As part of BMW's Allround category, the R57 was designed to effortlessly blend performance with practicality, making it a versatile choice for riders of its time. With its iconic boxer engine and distinctive styling, the R57 not only set the stage for BMW's future motorcycles but also carved out a niche in the hearts of riders looking for a unique blend of performance and comfort. At the heart of the R57 lies a robust 494cc two-cylinder boxer engine, delivering an impressive 17.95 horsepower at 4,000 RPM. This four-stroke powerhouse offers a delightful riding experience, characterized by its smooth torque delivery and distinctive rumble. Capable of reaching a top speed of 115 km/h (71.5 mph), the R57 provides a thrilling ride without compromising on stability. The air-cooled engine is complemented by a 24mm Bing carburettor, ensuring reliable fuel delivery and efficient performance. The shaft drive (cardan) system offers a smooth transition of power to the rear wheel, while the dry single-plate clutch allows for precise engagement, making the R57 an enjoyable motorcycle to ride over varying terrains. The engineering excellence of the R57 extends to its chassis and suspension, featuring a steel double cradle frame that offers both strength and flexibility. The leading link front suspension and long swingarm with oil pressure shocks at the rear deliver a comfortable ride, even on less-than-ideal roads. The R57's braking system, equipped with expanding drum brakes at both the front and rear, provides sufficient stopping power, ensuring rider safety. With a fuel capacity of 12 liters (3.17 gallons), this motorcycle strikes a good balance between range and weight, making it suitable for both short jaunts and longer excursions. Notably, the R57 is equipped with a traditional kick starter, adding to its vintage charm. In the world of classic motorcycles, the 1930 BMW R57 remains a beloved model, perfectly blending performance, style, and nostalgia for riders and collectors alike.
Pros
- Classic Engineering: The unique boxer engine design and shaft drive offer both performance and reliability, hallmarks of BMW motorcycles.
- Comfortable Ride: The combination of leading link front suspension and oil pressure shocks at the rear enhances riding comfort over various terrains.
- Iconic Style: The R57's classic aesthetic and build quality make it a timeless piece that stands out in any collection.
Cons
- Limited Power: While the power output is adequate for its time, modern riders may find the 17.95 HP underwhelming compared to contemporary motorcycles.
- Kick Start Only: The reliance on a kick starter may be less convenient for riders accustomed to modern electric start systems.
- Maintenance Requirements: The vintage design necessitates regular upkeep and may require specialized knowledge, which could be a barrier for some enthusiasts.
Technical details
Source specification data
- Make
- BMW
- Model
- R57
- Category
- Allround
- Starter
- Kick
- Carrying Capacity
- 360kg-with sidecar 600kg
- Power
- 17.95 HP (13.1 kW)) @ 4000 RPM
- Clutch
- Dry-single plate-cable operated
- Top Speed
- 115.0 km/h (71.5 mph)
- Fuel System
- Carburettor. 24mm Bing
- Compression
- 5.8:1
- Displacement
- 494.00 ccm (30.14 cubic inches)
- Cooling System
- Air
- Engine Details
- Two cylinder boxer, four-stroke
- Lubrication System
- Wet sump
- Transmission Type Final Drive
- Shaft drive (cardan)
- Fuel Capacity
- 12.00 litres (3.17 gallons)
- Overall Width
- 800 mm (31.5 inches)
- Overall Height
- 950 mm (37.4 inches)
- Overall Length
- 2,100 mm (82.7 inches)
- Rear Tyre
- 3.50-26.00
- Frame Type
- Steel doble cradle
- Front Tyre
- 3.50-26.00
- Rear Brakes
- Expanding brake (drum brake)
- Front Brakes
- Expanding brake (drum brake)
- Rear Suspension
- Long swingarm-oil pressure shocks
- Front Suspension
- Leading link
- Rear Brakes Diameter
- 200 mm (7.9 inches)
- Front Brakes Diameter
- 200 mm (7.9 inches)