shnibop, did you ever get any responses to your questions? I want to raise height of my handlebars on my traveler. And was wondering same question as you, I've seen replaceable quill stem threaded headsets at Nashbar and other places, but I do not know if I should buy 22.2 mm or 25.4 mm ? based on what i can read about 22.2 mm is for 1 inch forks and 25.4 mm is for 1 1/8 inch forks? see close up of markings on my headset stem. [ATTACH=CONFIG]178144[/ATTACH]