BMW R57: history, specs, pictures
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| BMW R57 | |
| Manufacturer | |
|---|---|
| Production | 1928 - 1930 |
| Engine | two cylinder boxer, four-stroke |
| Top Speed | 71 mph (115 km/h) |
| Horsepower | 17.57 HP (13.1 KW) @ 4000RPM |
| Fuel System | carburetor. 24mm bing |
| Transmission | Final Drive: shaft drive (cardan) Clutch: dry-single plate-cable operated |
| Suspension | Front: leading link Rear: long swingarm-oil pressure shocks |
| Brakes | Front: expanding brake (drum brake) Rear: expanding brake (drum brake) |
| Front Tire | 3.50-26.00 |
| Rear Tire | 3.50-26.00 |
| Wheelbase | 55.12 inches (1400 mm) |
| Length | 82.68 inches (2100 mm) |
| Width | 31.5 inches (800 mm) |
| Height | 37.4 inches (950 mm) |
| Weight | 195.0 kg (wet) |
| Fuel Capacity | 3.17 Gallon (12.00 Liters) |
| Fuel Consumption | 4.20 liters/100 km (23.8 km/l or 56.00 mpg) |
| Manuals | Service Manual |
The BMW R57 was a two cylinder boxer, four-stroke standard produced by BMW between 1928 and 1930. It could reach a top speed of 71 mph (115 km/h). Claimed horsepower was 17.57 HP (13.1 KW) @ 4000 RPM.
Engine
The engine was a air cooled two cylinder boxer, four-stroke.
Drive
Power was moderated via the dry-single plate-cable operated.
Chassis
It came with a 3.50-26.00 front tire and a 3.50-26.00 rear tire. Stopping was achieved via expanding brake (drum brake) in the front and a expanding brake (drum brake) in the rear. The front suspension was a leading link while the rear was equipped with a long swingarm-oil pressure shocks. The R57 was fitted with a 3.17 Gallon (12.00 Liters) fuel tank. The wheelbase was 55.12 inches (1400 mm) long.