Problem Solvers Headset Stack Spacer - 25.4 | 3mm | Black Aluminum

Problem Solvers Headset Stack Spacer - Black | Aluminum Problem Solvers

Problem Solvers Headset Stack Spacer - 25.4 | 3mm | Black Aluminum

Problem Solvers Headset Stack Spacer - 25.4 | 3mm | Black Aluminum

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Why Choose Problem Solvers Headset Spacers for Stack Height?

Getting your stack height dialed is one of the most overlooked fit details on a bike, and the Problem Solvers Headset Stack Spacer makes it easy to nail precisely. This 3mm spacer gives you fine-tune control over handlebar height without overshoot, perfect for riders working through a fit change or building out a new frameset that needs incremental adjustment. Made from CNC-machined aluminum with a clean anodized finish and no logos, it blends seamlessly into any headset stack.

The 25.4mm (1 inch) inner diameter fits standard 1-inch steerer tubes found on older road bikes, city bikes, and vintage steel builds. The black anodized finish is understated and professional, and the logoless design keeps your cockpit clean. Sold individually, so you can order the exact count you need rather than a kit full of sizes you won't use. A smart, simple piece that belongs in every home mechanic's parts bin.

$1.95
$1.95
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10 in stock

  • Orders over $100 ship free!
  • Estimated delivery: Aug 16 - Aug 20

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Specifications

  • Inner Diameter: 25.4mm (1 inch)
  • Height: 3mm
  • Material: Aluminum
  • Finish: Black anodized
  • Logo: None
  • Quantity: 1

FAQ

What steerer tube diameter does this spacer fit?

This spacer fits 25.4mm (1 inch) steerer tubes. It is not compatible with the more common 1-1/8 inch steerers found on most modern road, mountain, and gravel bikes. Check your fork spec before ordering.

Is this spacer sold in a set or individually?

This spacer is sold individually. Order the exact number you need based on your desired stack height change.

Can I use this spacer on a carbon steerer tube?

Aluminum spacers are generally safe on carbon steerers when installed at the correct torque spec and with a proper stem clamped above them. Always follow your fork manufacturer's torque and spacer guidelines for carbon steerers.

Best For

Riders with older road bikes, vintage steel builds, or any bike with a 1-inch threadless steerer who need precise, minimal stack height adjustment without committing to a fixed stem position.

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