Secondary Clutch STM / PRO XP (20')

This is a FINNED style  secondary that allows for more air movement inside the clutch housing, it helps keep the clutches, housing and belts cooler. You will need to cut the cross section part of the clutch housing duct to clear the adjustment nut on the secondary clutch to run this secondary. Photos below shows what needs to be cut for reference. 

This is an all billet construction that is capable of using compression springs. We have different spring rate options available (see menu above). We have many helix angles available (see menu for options). We can also provide custom helix angles if you desire for an additional fee.