3mm RAVX Headset Spacer - Premium Bicycle Headset Spacer for Bike Repair & Maintenance - Perfect for Mountain Bikes, Road Bikes & Cycling Accessories

The 3mm headset spacer is sold individually and is used to resolve minor incompatibilities with your fork, and clamp. We recommend getting multiple sizes if you're building a SCS custom or getting a new deck, fork, or clamp for your current SCS setup.