One trick for getting rid of a "notchy" feeling headset wit caged balls is to fill the race with loose balls and remove just
Enough to get an odd number (if the caged bearing was even). Did this on my Trek - feels like new.
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1989 Cannondale 3.0 Criterium (Built from frameset)
1989 Cannondale 3.0 SR900 (Full Campy)
1989/90 Cannondale 3.0 Road (frame only)
1989 Cannondale 3.0 Criterium (frame only)
1990 Cannondale 3.0 Criterium (frame only)
1986 Trek 400
1986 Raleigh Elkhorn (MTB)
1973 Raleigh Super Course
Lots of wheels and old parts, not enough time