Ritchey WCS Carbon Drop In Integrated Headset: Ritchey headsets are designed to take the abuse of bad roads & tough trails, while delivering smooth, reliable performance over the long haul. Ritchey headsets dont always get the attention they deserve; beautiful handlebars & stems can be so distracting. But this component is the interface between frame, fork & stem, & the basis for precision steering. Full complement stainless steel angular contact cartridge bearings packed with Ritchey high-webbing grease Compatible with Campy & Cane Creek Standard headtubes 16.8mm stack height Carbon fibre bearing cap & compression cap