Necessity for Headtube Reaming & Facing on Bikes that have Existing Headsets
I need to do some pressed headset work and have been contemplating acquiring some tools for that. One of the things that is holding me back is the necessity for reaming and facing headtubes as part of the headset installation process and the cost of the tools that I'd want for that.
Is reaming and facing something that is only required on new frames that haven't yet had headsets installed? Or is it it something that should be anticipated for the replacement of existing headsets as well?
Thanks for your help.