The 40-Series from Cane Creek is a reliable and durable headset suitable for all types of bikes. This series is crafted with the perfect balance of performance, durability, and value. The 40-Series features the new ZN40 bearings, which are zinc-coated and made with machined steel and hardened steel balls. These bearings are highly resistant to corrosion, resulting in a longer lifespan for the headset.The 40-Series headset is machined from high-quality 6061 T-6 Aluminium, ensuring its strength and durability. Its innovative Clip-Seal design completely seals the top assembly and captures the compression ring, reducing the number of loose parts. The headset also features low friction face-seals, a durable steel crown race, and dependable ZN40 sealed bearings.Additionally, the 40-Series headset is compatible with an interlock spacer. Its stack dimensions are 9mm for the upper and 1mm for the lower. The headset is available in a sleek black color. It weighs 71g and comes with a 1-year warranty (excluding bearings).