Extech Nitro X3 Clutch System

The Extech Nitro X3 Clutch System is a 3 shoe clutch that allows you 3 different spring adjustments without removing the springs and shoes. This system allowed you to easily dial in your clutch for track conditions in a very short time. Adjustments are made by removing the nut and clutch bell, then the inner adjuster is lifted up and rotated to the next position to adjust the spring tension. No more springs and shoe issues every time you need to adapt your power to changing track conditions.

Source: Trinity [teamtrinity.com]