For sale is fully restored NSU 251 OSB Max 250 type. The bike was disassembled down to the last item and rebuilt. Engine by former NSU plant employees generalberholt. Crankshaft with new bearings and engine rebuilt to unleaded. Engine runs very well! Otherwise, many new parts ... The individual parts were ruled by an expert hand of the original. HU was in February 2012 were new and without defects. I also have quite a few spare parts. Call to questions.