Ritchey Headsets Comp Semi Integrated Zs Headset, Black, ZS44 28. ZS56 40 UK

For bikes with semi-integrated ZS head tubes, the Ritchey Comp Semi-Integrated ZS headset stands out above all others. The Comp features full-complement stainless steel angular contact cartridge bearings packed with Ritchey high-webbing grease. The upper bearing is a sealed cartridge, while the lower bearing is coated in titanium. Stack height: 10.3 (1 ⅛”) / 11.6mm (1 1.5" tapared). Headtube ID upper: 44mm. Headtube ID lower: 44, 55, 56mm. Bearings: semi-cartridge (SSC).