Cane Creek?s 40-Series offers the largest ?tment range of any headset line on the market. Sets the standard for performance, durability and value Cane Creek has developed the most comprehensive tapered headset solution available today. Sold separately in tops and bottoms or as a single unit in some con?gurations, the 40-Series tapered solution offers the most comprehensive and innovative line of tapered headset options available. All the features necessary for a durable, light-weight, long-lasting headset - Sealed black oxide bearings - Durable steel crown race with low-friction seals - Internal parts are cross-compatible across 10, 40 and 110 series headsets - Precision engineered by Cane Creek in Fletcher, NC