Old thread but just wanna say I installed new tange vantage because that's what my bike had from factory, it has very stupid sealing almost non existent, it consists of super thin seal at the bottom, grease goes thru and grit goes in, also it's not sealed on the inside cause all the grease goes into the steerer tube so it's just a waste of time. Just get other headset, I've ordered HP 1055 can't go wrong with old school 105, much better design without cutting corners.