Full Speed Ahead Headset Stack Spacer

This spacer is designed for the industry-standard 1-1/8 inch steerer tube, which measures 28.6 mm in diameter. It is compatible with the vast majority of modern road, mountain, and commuter bikes, but you should verify your fork's steerer size before purchasing.

Each spacer provides exactly 10 mm of stack height. If you need to raise your handlebars further, you can stack multiple spacers together, provided your steerer tube has enough remaining length.

Yes, this aluminum spacer is safe to use with both aluminum and carbon fiber steerer tubes. Just ensure that your stem is properly clamped and that you follow your fork manufacturer's torque specifications to avoid damaging the steerer.

No, this product listing is for a single 10 mm spacer. If you are planning a significant adjustment to your handlebar height, you may need to purchase multiple units.

Aluminum spacers are generally more durable and resistant to cracking under high clamping pressure compared to carbon alternatives. They offer a reliable, set-it-and-forget-it solution that is ideal for daily commuting or rugged trail riding.