why not just get an ISO headset and get the headtube reamed and crown race seat cut...?
If that ebay JIS headset is really JIS then it's cheaper than the Tange Levin that I bought in this country.
I considered the reaming / milling thinking it might be worth it if I was going to get through numerous headsets (cheaper in the long run), but the frame it's going on doesn't get loads of use, so it might be the only time I ever replace the headset for quite a few years. Not worth paying twice for alterations and more expensive headset if that ebay JIS one is ok.
If it's not true JIS then with the apparent lack of JIS headsets around, yes I will be getting the work done and go ISO.
If that ebay JIS headset is really JIS then it's cheaper than the Tange Levin that I bought in this country.
I considered the reaming / milling thinking it might be worth it if I was going to get through numerous headsets (cheaper in the long run), but the frame it's going on doesn't get loads of use, so it might be the only time I ever replace the headset for quite a few years. Not worth paying twice for alterations and more expensive headset if that ebay JIS one is ok.
If it's not true JIS then with the apparent lack of JIS headsets around, yes I will be getting the work done and go ISO.