Bicycle Headset Expansion Bolt for 1 1/8 Inch Forks
30mm CB Cap Ti RT
$18.99
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Bicycle Headset Expansion Bolt for 1 1/8 Inch Forks
$18.99
This bicycle headset expansion bolt provides a secure anchor for your handlebars without the need for hammering. Designed for 1-1/8 inch (28.6mm) steerers, it is compatible with steel, aluminum, titanium, and carbon fiber forks, ensuring a stable fit for most mountain and road bikes.
Key features
- Expansion Structure – Allows for a firm installation inside the fork tube without the need for a hammer.
- Fork Protection – Engineered to install without scratching or damaging the interior of the fork tube.
- Reusable Design – Features a removable construction, allowing you to extract and reuse the bolt during maintenance.
- Wide Compatibility – Fits fork tubes with an external diameter of 25.4-28.6mm (1 to 1-1/8 inches).
- Durable Build – Constructed from a combination of alloy and steel to provide long-term reliability.
Specifications
| Material | Alloy and Steel |
| Expansion Range | 22.2–28mm |
| Fork Compatibility | 25.4–28.6mm (1–1 1/8 inch) external diameter |
| Mounting Bolt | M6 Metric |
| Weight | Approx. 32g (28mm), 50g (50mm), 74g (80mm) |
| Top Cap Weight | Aluminum set 15g; Titanium set 7g |
Ideal for
This expansion bolt is ideal for cyclists performing headset upgrades or fork replacements on bikes with steel, aluminum, titanium, or carbon fiber forks.
FAQ
Does this require special tools to install?
Yes, you will need an M5 or M6 hex key to tighten the expansion bolt during installation; the hex key is not included.
Will this damage my carbon fiber fork?
No, the expansion structure is designed to install securely without scratching or causing damage to the inner side of your fork tube.
Can I reuse this bolt?
Yes, this expansion plug is designed to be taken out, meaning it is not a one-time-use component.