The glossy exterior you see on carbon parts is usually achieved by the epoxy resin, not any clear paint topcoat. I'm not aware of any protective qualities associated with a glossy topcoat, and I'd advise you to leave your fork alone unless you prefer the aesthetics of gloss.
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It is my belief that every person in this world has something to teach, and everything to learn.
In memory of Jim Price (aka. sydney) ...