Ritchey WCS Headset Upper (1-1/8") (12.4mm Top Cap) (ZS44/28.6) - 33055337007
Ritchey WCS Headset Upper (1-1/8") (12.4mm Top Cap) (ZS44/28.6) - 33055337007, Ritchey WCS Upper/Lower Headset. Features: Sealed cartridge bearings that fit directly into the headtube Upper includes top cap Specs: Size:1-1/8"