The rocker arms are special for NSU Sport Max
and are not obtainable today, so therefore I have
changed two standards so that they match the
original . You have to adjust the valve clearance
by changing balls who has got the surface grinded
in various heights.
Upper spring holder and rocker arm has been
28 gram more light.

In the cylinder head there is to be milled off for
a valve  seat which suits for an 42 mm injection
valve.