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Are you dialing in the fit of your bike and want to get everything set before you cut your steerer tube? This is the part for you! This spacer will let you set the headset preload without installing a star nut so you can fine tune everything first. After installing your headset spacers and stem, the Micro-Adjustable spacer snugs up your stem against the spacers with a 36mm
The Problem Solvers adjustable spacer installs between the stem and headset to adjust bearing preload.