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. It’s 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.

Features

• Optimized for 1-1/8" Forks: Designed for 49mm head tubes, offering perfect compatibility and balanced steering for semi-integrated (Zero Stack) setups.
• SHIS Standard Compatibility: Built to ZS49/30 specification, ensuring accurate fitment and easy installation on modern road, gravel and MTB frames.
• Durable Construction: High-quality materials ensure smooth, friction-free rotation and long-lasting performance under all riding conditions.
• Enhanced Steering Control: Maintains precise alignment between frame and fork, improving handling stability and rider confidence.
• Sealed Protection System: Fully sealed to prevent moisture and dirt ingress, preserving performance and extending service life.

Specifications

• Product Number: HE-ZS49-30
• Type: Semi-Integrated
• Position: Down
• SHIS: ZS49/30
• S.H.I.S Lower: EC49/30
• Frame Diameter: 49 mm
• Fork Pivot Diameter: 1-1/8 inch (30 mm)