The Classic Headset is the reliable workhorse of the Ritchey headset range. Available with the timeless high-polish finish, this smooth and reliable specimen features lightweight, precision-machined aluminum construction, sealed cartridge bearings, and comes packed with Ritchey Grease. A sealed design promises minimal penetration from the elements. The Classic Headset adds that classy and reliable detail your bike deserves. External, precision-machined aluminum cups. Sealed cartridge 45/45-degree bearings, Ti coated. Stack height 28.3mm. Item Specifications: Bearing Type: Cartridge, Bearing Type: Sealed, Color: Silver, Defined Color: Silver, Material: Aluminum, S.H.I.S Lower: EC34, S.H.I.S Upper: EC34, S.H.I.S. Stem Clamp Diameter: 28.6, Stack Height: 28.3,