Biltwell 4322 Chromoly Seat Hinge Black Macho Solo Seat Mount

The Biltwell 4322 Macho Negro seat hinge represents the evolution of their original 4130 chromoly seat hinge design, featuring a second-generation welded seat bracket with an investment-cast steel pivot head for enhanced durability. This premium seat mounting system is engineered for custom choppers and bobber builds requiring a professional solo seat installation.

Construction and Materials:

• Investment-cast chromoly hinge head for maximum strength
• Laser-cut 4130 chromoly steel mounting strap
• Black electroplated finish for corrosion resistance and custom appearance
• Raw steel pivot bracket designed for welding
• Bronze pivot bushings for smooth operation
• Chrome shoulder bolt included

Features and Installation:

• Two long slots in the mounting bracket provide adjustability
• Hinge bung mates seamlessly to 1.5-inch frame tubing
• Retrofits to both original welded and newer cast hinge bungs
• Raw pivot bracket allows welding to frame backbone without special preparation
• Creates a pivoting point between the seat nose and frame backbone

Installation requires grinding, welding, and repainting to mount the pivot bracket to your motorcycle's frame. The black mounting strap bolts to the underside of most solo seats using standard mounting studs. The finished assembly provides a tight, flexible hinge interface that keeps your seat secure while allowing easy access to the battery or electronics compartment.