Problem Solvers Micro Adjustable Headset Spacer - For 1-1/8" Steer Tubes 10mm Min 12mm Max Height

Problem Solvers Micro Adjustable Headset Spacer. 12mm Height. The Problem Solvers adjustable spacer installs between the stem and headset to adjust bearing preload.

Installs between stem and headset to adjust headset preload

Use instead of star nut or preload compression plug; ideal for carbon steerers

Requires a minimum of 10mm stack height below stem