I think there are just 2 sizes for fork races for 1" forks and head sets: 26.4mm is most common. I think Campagnolo is always 26.4mm. 27.0mm is a bit odd, mainly for cheaper bikes.
@Dutch_Cheese started
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I think there are just 2 sizes for fork races for 1" forks and head sets:
26.4mm is most common. I think Campagnolo is always 26.4mm.
27.0mm is a bit odd, mainly for cheaper bikes.