Cane Creek 40 Int Set Tall Black 1", 38mm Head-Tube 40-Series Represents the Perfect Balance of Performance, Durability and Value 6061-T6 Aluminum Cover Innovative Clip-Seal Seals the Top Assembly and Captures the Compres sion 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 series