- The evolution of Biltwell's original 4130 chromoly seat hinge
- Second-generation welded seat bracket now features an even tougher investment-cast steel pivot head
- Cast chromoly hinge head
- Laser-cut 4130 chromoly steel strap
- Seat bracket is black electroplated for durability
- Raw steel pivot bracket and bronze pivot brushings
- Retrofits to both the original welded and newer cast hinge bung so upgrades are easy
- Chrome shoulder bolt