Replacement or upgrade base for Spinlock XA or XAS clutches. Two versions available for line diameters 4mm - 8mm and 6mm - 12mm.

XAS Base 4mm - 8mm
  - Gives optimised holding on small diameter lines 4-8mm (5/32-5/16")
  - Strongly recommended for sportsboat and other small boat high performance applications
  - Can only be used on single unit XAS clutches

XAS Base 6mm - 12mm
 - Replacement base for XAS and XA clutches
 - For line diameters 6mm - 12mm
 - Can only be used on single unit XA clutches