FSA Duron X Headset

This is a classic 1-inch threaded headset, so it is designed specifically for frames and forks that use a threaded steerer tube. It will not work with threadless or oversized steerer systems.

The stack height is the total vertical space the headset occupies on your steerer tube. You need to ensure your fork's threaded steerer tube is long enough to accommodate this 40.6 mm measurement plus the thickness of your headset locknut and any spacers you plan to use.

Angular contact bearings are designed to handle both radial and axial loads simultaneously, which is essential for steering precision. The 36-degree angle is a standard specification that ensures smooth rotation and durability under the stress of riding.

The alignment tip helps ensure the headset cups are seated correctly during installation and remain stable while riding. This design feature reduces the risk of the headset loosening over time and helps maintain consistent performance.

Yes, this is a complete headset assembly. It includes the cups, the 36-degree micro angular contact bearings, and the 7075-T6 crown race, providing all the necessary components to install the headset on a compatible frame.