Quick Summary
This compression plug is a bicycle headset expander plug for front forks with a 28.6 mm upper end outer diameter. It is described as suitable for use with carbon fibre front forks and mountain suspension forks, and it uses a stainless steel screw and aluminium alloy construction.
As a fork headset expander, it sits inside the steerer area and is intended for the headset top cover setup. The main buying checks are fork size, fork type and whether the item matches the exact steerer diameter you need.
Key Details
| Detail | Verified information and buyer relevance |
|---|---|
| Product type | Compression plug bicycle headset expander plug for a front fork. |
| Fork size | Suitable for an upper end outer diameter of 28.6 mm, so the fork steerer size needs to match. |
| Compatible fork types | Carbon fibre front fork and mountain suspension fork are stated as applicable. |
| Materials | Stainless steel screw and aluminium alloy construction are stated. |
| Use position | Used with the headset top cover and expander setup on the front fork. |
What to Compare Before Buying
- Steerer diameter: Check that the front fork upper end outer diameter is 28.6 mm.
- Fork type: Compare your fork against the stated carbon fibre front fork and mountain suspension fork use.
- Headset setup: Make sure you need a compression plug rather than another headset part.
- Materials: Stainless steel screw and aluminium alloy are listed, which may matter if you are matching an existing setup.
Before You Decide
Confirm the 28.6 mm fork size before choosing an offer. Check that this is the correct compression plug for your headset top cover setup, and make sure your fork type matches the stated application. Follow the manufacturer’s instructions for fitting and use.






