Full Speed Ahead Headset Spacers

These spacers are designed specifically for standard 1-1/8 inch (28.6mm) threadless steerer tubes. They are compatible with the vast majority of modern road, mountain, and hybrid bikes that use this common industry standard.

Each spacer in the pack measures 5mm in height. This allows you to make precise, incremental adjustments to your stem height by stacking them as needed.

Yes, they are constructed from high-quality, durable polycarbonate. While they are lightweight, they are robust enough to handle the vibrations and stresses of mountain biking and road cycling alike.

The pack includes ten individual 5mm spacers. This quantity provides plenty of flexibility to dial in your cockpit fit or to accommodate different stem setups.

No special tools are required. You simply need to loosen your stem bolts, remove the top cap, slide the spacers onto the steerer tube to your desired height, and reinstall the stem and top cap.