I have an Italian Viner Road frame. It needs a new headset. I’m assuming it’s alos Italian (as is the BB) According to Sheldon Brown, ISO and Italian headsets can be interchangeable (Sheldon Brown’s Bicycle Glossary Ha-Hi)
When I took out the old headset (which was an absolute piece of shit), it was shimmed on the forks and in the headtube. i don’t want to have to do this with a new headset.
Basically, I want a new headset. Nothing fancy, sometihng that works and isn’t NOS NIB NJS PISTA CAMPY etc.
Do I need Italian or can I get an ISO one?
EDIT: Velo Orange have this on their blog…
Italian headsets are virtually the same as ISO. The crown race ID is 26.5mm rather than 26.4mm and the threads are a tiny bit different, but ISO headsets are so close that they work absolutely perfectly on Italian frames.