The Union Mini Disk is a small diameter mounting disk that bolts your binding to the board with less contact area, so the board can flex more naturally under your feet.

What it's for

The disk is the round plate in the middle of the baseplate that the mounting screws pass through. A smaller disk clamps a smaller patch of the board. Union's Mini Disk is made to keep the board's own flex, including torsional (twisting) flex underfoot, for a looser, surf style feel and more board feel.

Compatibility

• Fits: Falcor, Strata, Legacy, Contact Pro, Milan, and Ultra, 2016 to present
• Does not fit: Ultra and Falcor from 2022 to present
• Mounting patterns: 2x4 and The Channel
• Does not cover: 4x4 only boards or 3D pattern boards, which are not listed for this disk
• How to check yours: Union's FAQ lists which disk each model uses. Atlas, Force, Trilogy, STR, and Juliet use the Camber Disk. Flite Pro, Rosa, and Cadet use the Universal Disk

Setup and installation

• Install: set your stance angle on the disk, then tighten the mounting screws evenly
• Cleaning: Union says not to use thread locker or chemicals to clean its disks and hardware
• Service: OMG's shop can mount bindings and set stance

In the box

• Mini Disks: 2
• Mounting hardware
• Mesh carrying bag