Upgrade your bicycle's steering precision with the FSA Micro ACB Blue Seal 36 x 45 1-1/8" Standard Headset Bearing - engineered for durability, smooth performance, and reliable handling. Designed specifically for high-performance road, mountain bike, and gravel bikes, this sealed bearing seamlessly integrates into your headset assembly to ensure optimal steering response and longevity. Materials & Construction Constructed from chromoly steel, the FSA Micro ACB bearing guarantees superior strength and resistance to wear and corrosion. The black seal design not only enhances durability against dirt, dust, and moisture but also minimizes maintenance needs, keeping your ride smooth mile after mile. Performance & Engineering Featuring advanced 36 x 45 ball engineering, this sealed cartridge bearing offers exceptional load distribution and reduced friction, resulting in improved steering feel and responsiveness. The precise CNC-machined forged cup design ensures perfect fits and maintains consistent performance even under demanding riding conditions. Components & Technology This model includes a sealed bearing (model MR122, bearing number 873-RS) with a 30.2mm inner diameter and a 41mm outer diameter, compatible with standard 1-1/8" head tubes. The 6.5mm thickness provides robust support for your fork crown race, contributing to stable handling and precise control during sharp turns and technical descents. Style & Use Case Ideal for cyclists seeking reliable, high-performance headset components, the FSA Micro ACB Blue Seal bearing combines a sleek black seal with precision engineering-perfect for both professional and enthusiast riders. Whether you're upgrading your existing headset or building a custom bike, this bearing ensures smooth, dependable steering with a clean aesthetic. Innovative Features & Differentiators - Forged and CNC machined cups for exact tolerances - Sealed design provides extra protection against environmental elements - High-grade chro