corrado33, While I don't have an issue yet with my 6500 600 head set bearings, I think I'll research this a bit and see if there are any replacements...somewhere.

For some reason I admire Shimano for keeping the 600 script on the HS even though the name officially became Ultegra. I thought it was a carry over 'accident' back in '97 when I ordered a new Ultegra group, but the label was still the same in '99.

Brad