Blackbearing Zs4930 Lower Headset Bearing

The Blackbearing ZS49/30 Lower Headset Bearing delivers smooth, precise steering performance for semi-integrated headset systems. Designed to replace your original bearing with exact fitment, it ensures stable control and long-lasting reliability for demanding riders.

Optimized for 1-1/8″ Forks: Engineered for 1-1/8 inch (30mm) fork steerers, this bearing fits frames with a 49mm internal diameter at the head tube. Its semi-integrated (Zero Stack) design offers a clean look while maintaining optimal load distribution between the frame and fork.

SHIS Standard Compatibility: Following the SHIS specification ZS49/30, the bearing guarantees a precise fit for compatible frames. Its widely used in modern road, gravel and mountain bikes that require a dependable lower headset bearing.

Protected Against the Elements: Sealed against moisture and debris, the bearing maintains long-term performance even in challenging riding environments. The Blackbearing ZS49/30 Lower Headset Bearing combines precision engineering and durability for a confident, maintenance-free ride.

Built with high-quality materials, the ZS49/30 bearing ensures smooth rotation, reduced friction and resistance to wear. This provides consistent steering precision and improved handling on every ride.