The Tangeseiki #1545 headset bearing is engineered as a sealed cartridge unit, delivering smooth and consistent steering performance. Its precision-machined construction ensures accurate alignment within the headset assembly.

Optimized for 1-1/8" Headsets: Designed specifically for 1-1/8" sized headsets, this bearing integrates seamlessly into compatible frames and forks. The fit supports stable handling and dependable front-end control.

45° / 45° Angular Contact Profile: The 45° / 45° contact angle is optimized to handle both radial and axial loads generated during braking, cornering and rough road conditions, helping maintain precise steering feel.

Sealed for Durability and Low Maintenance: A fully sealed structure protects the internal races and balls from dirt, moisture and contamination. This extends service life and reduces the need for frequent maintenance.

Ideal for headset servicing or upgrades, this bearing restores smooth rotation and confidence-inspiring control without altering the original headset geometry.

Features

• Sealed Cartridge Bearing Design: Fully enclosed construction protects against dirt and moisture, ensuring smooth steering with reduced maintenance.
• Optimised for 1-1/8" Headsets: Precisely sized to integrate seamlessly into compatible frames and forks for stable, predictable handling.
• 45° / 45° Angular Contact Profile: Effectively manages radial and axial loads during braking, cornering and uneven road conditions.
• Low-Friction Consistent Rotation: Precision-machined bearing surfaces deliver smooth, quiet steering performance over extended use.
• Reliable Replacement Solution: Ideal for servicing or upgrading headsets while maintaining original geometry and steering feel.

Specifications

• Model: #1545
• Product Type: Headset Cartridge Bearing
• Bearing Profile: Angular Contact
• Seal Type: Sealed
• Material: Bearing Steel
• Compatibility: 1-1/8" Threadless Headset Systems
• Inner Diameter: 30.2 mm
• Outer Diameter: 45 mm
• Height: 7.7 mm
• Contact Angle: 45° / 45°