Back to Bike FinderYears: 1930 · 1929 · 1928
BMW R57
1930Allround

BMW R57

Key specifications

Engine
494 cc
Power
18 HP
Fuel type
petrol
Fuel capacity
3.2 L
Front brakes
Expanding brake (drum brake)
Rear brakes
Expanding brake (drum brake)

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)