Cane Creek 40 ZS44/28.6 EC44/40 Conversion Headset Black Interlock spacer compatible Sealed black oxide bearings Carbon-friendly compression ring captured in top cover, keeping shims in place Steel crown race with integrated seals Compatible with tapered 1-1/8" to 1-1/2" steered tubes, or straight 1-1/8" steerers with a conversion crown race (sold separately)