Originally Posted by
AdventureManCO
I'm definitely a fan of the A9 and I do think that is probably the absolute best option although I'd have to go used to be anywhere near the price point, though I hear that the roller bearings 'wear well' so perhaps wear may not be as big of a concern as a standard ball bearing headset, though more experienced minds may want to chime in on that.
I have several versions[1] of the roller-bearing Stronglight on various bikes and my experience matches that of pretty much everyone else I've read; yes it's not as big a concern.
It's just about zero concern, in fact.
[1] there's a "composite" (=plastic) version, I think it feels different, don't like it as much.