Detail Info for: 1928 BMW R-Series 1928 BMW 490CC R57
Transaction Info
Sold On:
09/17/2018
Price:
$ 36400.00
Condition:
Mileage:
250
Location:
San Mateo, California, 94402
Seller Type:
Private Seller
Vehicle Specification
Year Make Model:
1928 BMW R-Series
Submodel Body Type:
Engine:
Transmission:
VIN:
70885
Vehicle Title:
Rebuilt, Rebuildable & Reconstructed
Drive Train:
Fuel Type:
Standard Equipment:
Optional Equipment:
Vehicle Detail
1928 BMW 490CC R57Engine no. 70885 Following the collapse of its aero engine business after WWI, BMW turned to other areas of manufacture, motorcycles among them. The first BMW branded motorcycle (in 1923) - the R32 - featured a 493cc twin-cylinder, sidevalve engine with horizontally opposed cylinders, and this "flat twin" layout would forever be associated with the marque. This first effort was expensive but superbly engineered. For 1928, BMW reorganized its range of engines, which now included a brace of 750s: one sidevalve, one overhead-valve. The new, overhead-valve R57 sports bike's engine was "square" with 68mm for both bore and stroke. It ran a hand shift 3-speed gearbox. Electric lighting was standardized throughout the roadster range. R57 production lasted for only three years and today this rare BMW is among the marque's most sought-after machines of the period. There were 1,005 R57's produced with most not surviving the war. Top speed is 115KPH.
