The all-new 40-Series is the workhorse of Cane Creek's headset line-up. The series incorporates all the features necessary for a durable, lightweight, long-lasting headset and represents the perfect balance of performance, durability, and value. Made from 6061 T-6 aluminum, this headset features an innovative clip-seal that completely seals the top assembly and captures the compression ring to reduce the number of loose parts. High-quality, low-friction face-seals and dependable black oxide, sealed bearings ensure smooth operation. The headset is also interlock spacer compatible and features internal parts that are cross-compatible across the 10, 40, and 110-series. Suitable for unisex riders, this headset is designed for use with ZS44-28.6 size bikes.