BMW R57: history, specs, pictures
|Production||1928 - 1930|
air-cooled,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)
|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)|
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.
The engine was a air cooled two cylinder boxer, four-stroke.
Power was moderated via the dry-single plate-cable operated.
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.
1928 - 1930 BMW R 57
The 1928 BMW R 57 has, at its heart, an air-cooled, four-stroke, 494cc, twin cylinder powerplant paired to a four-speed manual transmission and can reach a maximum power output of 18 horsepower at 4000 rpm. This classic machine from the House of Munich had standard fittings such as a plate spring front fork, a rigid rear suspension with a sprung single seat, a rear luggage rack, a small headlamp, laced wheels, a center stand, a front drum brake coupled to a block brake in the rear and a 12-liter (3.3-gallon) fuel tank.