3mm or 5mm.
Used for compatibility issues when:
- The Shim is too short to reach the headset.
- The fork hits the SCS system so the compression bolt cannot be tightened.
- If you have a Madd deck and want to upgrade with a Lucky SMX for and HIC / SCS system.
- If you have a Blunt AOS V2 deck and want to use it with a HIC / SCS system.
Put these over your headset, on the fork and create the space needed.