1928 BMW 746cc R62
Frame no. 21993
Engine no. 60937
Development of the BMW flat-twin engine proceeded rapidly throughout the 1920s, with barely a year passing without some major technical advance. The first overhead-valve-engined sports roadster, the R37, appeared in 1925 alongside BMW's first single-cylinder offering, to be followed by a new 500cc tourer, the R42, towards the end of that same year. Redesigned cylinders and 'heads distinguished the R42 engine, which went into a new frame shared with its ohv equivalent, the R47. The first 750cc models, the R62 and R63, arrived in 1928. A sidevalve tourer, the former employed the same long-stroke (78mm) built-up crankshaft as the new 500cc R52 while the sporting overhead-valve R63 featured a short-stroke (68mm) crank coupled with a 83mm bore. These new engines incorporated a strengthened gearbox featuring a 'side-throw' kickstart, the cycle parts being upgraded with a larger front brake. Electric lighting was now standard on all BMW models.
The arrival of the fashionable 'saddle' fuel tank at the end of the 1920s meant that BMW's distinctive wedge-shaped tank had to go, and the resulting wholesale revision of the design undertaken for 1929 would later confer iconic status on these early BMWs.
This particular R62 was purchased by the current vendor from a collection in the Netherlands in December 2010. The machine is offered with Fahrzeugschein.
Die R62 gehört zu den ersten 750 ccm Maschinen von BMW. Dieses Modell vefügte u.a. über ein verstärktes Getriebe und einen verbesserten Kickstarter. Die Vorderradbremse wurde verstärkt und elektrische Beleuchtung gehörte nunmehr zur Standardausrüstung. Der gegenwärtige Besitzer erwarb die R62 im Dezember 2010 von einem Niederländischen Sammler.; sie wird mit einem deutschen Fahrzeugschein angeboten.
- The Engine number is: 63057. The Frame number is: 20881