Hey everyone,
Sorry if it's a noob question but I was wondering if anyone has a moment and can help me out.
Can anyone explain what I believe to be called shims (circular parts with numbers +4, +2, 0 that go on the inside part) of the stem do. Right now the stem I have has some inserted.
1. What do they do?
2. How do they effect the position?
3. What does removing them do?