FSA Headset Spacers

These spacers are designed specifically for threadless forks with a standard 1-1/8 inch (28.6 mm) steerer tube diameter. They will not fit tapered forks with different dimensions or older threaded fork systems.

Aluminum spacers offer a balance of durability and weight. They are more robust than plastic, less prone to cracking than carbon under high clamping forces, and provide a secure, consistent stack height for your stem.

Yes, the kit is quite comprehensive. It includes three 3mm, four 5mm, three 10mm, and two 20mm spacers, allowing for a wide range of height adjustments to dial in your riding position.

Yes, as long as your bike uses a standard 1-1/8 inch threadless steerer tube, these spacers are compatible with both road and mountain bike setups.

You do not need specialized tools to install the spacers themselves, but you will need a set of hex keys to loosen your stem bolts and adjust the headset preload. Always ensure your headset is properly adjusted after changing your stack height.