bottoming-cone

The fork spring surrounds a black plastic unit called the 'spring guide' that keeps the spring central. The guide dives into a 36mm deep cup called the 'bottoming cone' that helps resist bottoming as the guide blocks some oil/air off and creates a small compressed bubble.

The fork spring surrounds a black plastic unit called the ‘spring guide’ that keeps the spring central. The guide dives into a 36mm deep cup called the ‘bottoming cone’ that helps resist bottoming as the guide blocks some oil/air off and creates a small compressed bubble.