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Road Bike Frames, Wheels & Components / Re: VeloBuild VB-TT-023
« on: June 16, 2026, 12:23:11 PM »Is the C shim needed? I asked Chris where to put it and he just told me it's optional. So I didn't bother putting it.
The C shim is needed when the stem is rubbing against the headtube when everything is compressed. The rubbing does not let your handlebar move freely. This was not necessary for the carbon stem but the alloy one comes just a bit more down that gives a bit of rubbing when fully compressed.

