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This is called a p-tension adjust here on this Schram derailleur. By turning this screw
in it determines the rotation of the derailleur. As you move it in it moves the derailleur,
the top jockey a little farther away from the cassette. If you have a bigger cassette
you need to run more of this p-tension, but that's the only time you mess with that. It's
the same thing with the Shimano one. It's right here. Because of the difference of the
function of these derailleur?s they call it a different thing. The Shimano derailleur
moves outward and upward at the same time as well as down like that. It has more degrees
of freedom. The Schram derailleur stays static there. It doesn't rotate around this direction
and only moves like that. It is also a more stable set-up. If I had this derailleur on
here it could rock up and hit the chain stay. It's a little bit, little bit smoother. Now
were going to talk about adjusting the low and high limits. The low limit, although this
is the lowest position, were talking about our easiest gear. Our high limits were talking
about highest or hardest gear. You could almost think H is for hard. On a Schram derailleur
L is on the top low is on the top, and high is on the bottom. On a Schram mono-derailleur
high is on the top and low is on the bottom. It's different. Luckily everything is etched
onto the derailleur. You can see the little H and the little L on there that let's you
know what you are doing.