Cane Creek 50-Series headsets bring a new, modern aesthetic while maintaining a relatively affordable price. Additional machining on the top cover and cups along with refined, laser-etched graphics give the headset a sharper, more angular appearance that feels more appropriate for today’s bikes. The 50 is a fantastic upgrade to increase the peace of mind that comes with a quiet, tight, and smooth-riding bike. Key Features 6061-T6 Aluminum cups and covers are internally relieved to minimize weight and maximize strength Features a steerer tube o-ring seal, low friction top cover lip seal, and co-molded crown race lip seal to provide protection from contaminants Steel forged and machined crown race offers increased hardness and durability ZN40 sealed cartridge bearings are zinc-coated for corrosion resistance Carbon friendly captured compression ring Interlok® spacer compatible (Sold Separately) Specifications Lower Stack Height 11 Material Aluminum Material Steel Upper Stack Height 15 S.H.I.S Upper EC34 S.H.I.S. Stem Clamp Diameter 28.6 Threadless S.H.I.S Lower EC34 Color Black Crown Race 30 Bearing Type Cartridge Defined Color Black Stack Height 26