Difference between revisions of "BMW R50"

The long-awaited replacements for BMW's long-running Earles-forked flat twins finally arrived in 1969. As well as a telescopic, leading-axle front fork, the newcomers featured a lightweight, welded, duplex frame, innovations first seen on the Bavarian company's ISDT machines. The engine too had come in for revision, now employing a one-piece forged crankshaft and aluminium-alloy cylinder barrels while carrying its camshaft below the crank. Coil ignition and 12-volt electrics were other new departures for the Munich firm. The new '/5' models came in three engine capacities, the variation being achieved by different bore sizes in what were otherwise virtually identical machines. The R50/5 produced a claimed 32bhp, which was good enough for a top speed of 98mph.  

The long-awaited replacements for BMW's long-running Earles-forked flat twins finally arrived in 1969. As well as a telescopic, leading-axle front fork, the newcomers featured a lightweight, welded, duplex frame, innovations first seen on the Bavarian company's ISDT machines. The engine too had come in for revision, now employing a one-piece forged crankshaft and aluminium-alloy cylinder barrels while carrying its camshaft below the crank. Coil ignition and 12-volt electrics were other new departures for the Munich firm. The new '/5' models came in three engine capacities, the variation being achieved by different bore sizes in what were otherwise virtually identical machines. The R50/5 produced a claimed 32bhp, which was good enough for a top speed of 98mph.  

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