40-Series IS Top Tall Carbon 40-Series Represents the Perfect Balance of Performance, Durability and Value Tops and Bottoms Sold Separately As Part of Cane Creek"s Tapered Headset Solution Unidirectional Carbon Cover Innovative Clip-Seal Seals the Top Assembly and Captures the Compression Ring Interlok Spacer Compatible Sealed Black Oxide Steel Cartridge Bearing Consistent Stack Heights Across 10, 40 and 110-Series Internal Parts Are Cross-Compatible Across 10, 40 and 110-SeriesItem SpecificationsColor: UD CarbonSize: 1-1/8"UPC: 840226095172MPN: BAA0095UDSold Individually