Tags BMW R50

Purchasing classics there
BMW R50, 4 valves per cylinder

Four valves for a classic BMW

Dieter Hartmann-Wirthwein must be a first cousin of Willie Wortel. He says he is not a web designer or writer, but he manages quite well in his workshop. For example, he made four-valve heads for his classic racer, a BMW R 50 with Kaczor chassis. He had the crankshaft made by Kurt Manigatter. Knowing more? Just take a look at www.wirthwein-motor.de