I have an old Raleigh Grand Prix ('70-'73, not quite sure, it was the one with the hand painted lettering) and I'm sick and tired of the headset I have in it. It's such a headache. Can I use any 1 inch threaded headset I find for it? Also, I found a "new" campy record headset on ebay and was wondering if it had sealed bearings or not. I just need a headset that will stay put and won't come loose every other week. Could anybody give me any recommendations for 1 inch threaded headsets?