Full Speed Ahead Headset Spacers

These spacers are designed for standard 1-1/8 inch steerer tubes, which have an inner diameter of 28.6 mm. They will fit most modern road, mountain, and hybrid bikes, but you should verify your steerer tube size before purchasing.

Polycarbonate is significantly lighter than aluminum and won't scratch or mar your steerer tube during installation or adjustment. It is also completely corrosion-resistant, making it a durable, low-maintenance choice for your cockpit.

This bulk pack includes 10 individual spacers, each with a height of 5 mm. This quantity is ideal for fine-tuning your handlebar height or completing multiple bike builds.

Yes, you can mix and match these polycarbonate spacers with metal ones without any performance issues. Just ensure that the total stack height is correct for your stem and that your top cap is properly tightened to preload the headset bearings.

Yes, the blue color is a cosmetic feature. While it adds a subtle pop of color to your bike's front end, the material properties and performance remain identical to standard black or clear polycarbonate spacers.