Ritchey WCS Headset Upper (1-1/8") (7.3mm Top Cap) (ZS44/28.6) - 33055337006
Ritchey WCS Headset Upper (1-1/8") (7.3mm Top Cap) (ZS44/28.6) - 33055337006, Ritchey WCS Upper/Lower Headset. Features: Sealed cartridge bearings that fit directly into the headtube Upper includes top cap Specs: Size:1-1/8"