Headset .25mm Shim Pack (20 Pack)

This is a pack of 20 headset shims, each one 0.25mm thick. Shims take up the small gap that stops a headset sitting the way you want it, so you can sort out the fit without chasing new parts.

They suit 1 1/8 inch steerer forks and matching headsets. Add or take away shims a quarter of a millimetre at a time until the fit is right.