Carbon-Ti X-Plug Steerer Expander
Carbon-Ti X-Plug steerer expander is a practical and lightweight removable accessory which allows the locking of the headset cap adjusting bolt. The special design allows an extremely wide compatibility with most 1.1/8" carbon or aluminum alloy steerers on the market, they only should have inner diameter between 21.2 and 25.0 mm. It's 7075T6 Aluminum fully CNC made and with only 14 grams allows to save a lot of weight from stock headset expander systems. It's compatible with headset caps with M6 bolts and could be installed with an 8 mm hex wrench key. 100% Made in Italy.
Carbon-Ti X-Plug steerer expander is an ultralight and useful removable accessory which allows to fix headset adjusting bolt.
The special design makes X-Plug compatible with most of steerer tubes on the market (aluminum, steel or carbon fibre ones) from Road Bicycles, Mountain Bikes or Cross Bicycles.
Its wide range of action allows it to fit steerer tubes with an inner diameter from 21.2 mm up to 25.0 mm. Headset preload adjusting bolt should be M6 diameter.

Carbon-Ti X-Plug steerer expander is very simple and fast to install, only an 8 mm hex wrench key is required. After headset preload setting, the expander could be removed allowing more weight saving. Of course in this way you can use one expander for more bicycles. For carbon fibre steerer tubes the expander works also as reinforcement so expander removing isn't recommended.

Compared to standard steel star nuts (1) X-Plug is easier to install and remove and doesn't damage inner steerer tube surface.

Star nuts (1) requires special tools for installation and also removal could be very difficult. Star nuts could be used only once and they're not compatible with carbon fibre steerer tubes because they will damage them.

Compared to standard expander used on carbon fibre steerer tubes (2 and 3), X-Plug expander, with only 14 grams, allows to save a lot of weight (up to 70% or more).

Compared to type (2) expanders, Carbon-Ti X-Plug steerer expander has got a special knurling which increase grip with steerer tubes.
X-Plug is fully CNC Al7075T6 made with a smooth and elegant shape. Comes with a nice anodized finishing for a long lasting.
X-Plug steerer expander, like all other Carbon-Ti products, is 100% Made in Italy.

Product Details
Data sheet
- Weight :
- 14 gr.
- Material :
- Totally CNC from AL 7075 Txx
- Steering Tube fitting :
- with internal diameter from 21.2 mm to 25.0 mm
- Top Cap Fitting :
- With M6 register bolt
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€16.31
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Description |
Carbon-Ti X-Plug steerer expander is a practical and lightweight removable accessory which allows the locking of the headset cap adjusting bolt. The special design allows an extremely wide compatibility with most 1.1/8" carbon or aluminum alloy steerers on the market, they only should have inner diameter between 21.2 and 25.0 mm. It's 7075T6 Aluminum fully CNC made and with only 14 grams allows to save a lot of weight from stock headset expander systems. It's compatible with headset caps with M6 bolts and could be installed with an 8 mm hex wrench key. 100% Made in Italy. |
Carbon-Ti X-Plug OS ultralight steerer expander for 1.1/4" oversize steerer tubes. Fully CNC aluminium made, only 17 grams, allows to save a lot of weight. Very easy to install and remove, you just need an 8 mm allen hex key, compatible with steerer tubes with inner diameter from 24.0 to 28.0 mm, carbon fiber or aluminium ones both. 100% Made in Italy. |
The Ultrastar 4 expander is a practical and lightweight removable accessory which allows the locking of the cap adjusting bolt. The special design allows an extremely wide compatibility with most 1.1/4" oversize carbon or aluminum alloy steerers tubes on the market, they only should have inner diameter between 25.0 and 27.2 mm. It's 7075T6 Aluminum fully CNC made and with only 5.7 grams allows to save a lot of weight from stock headset expander systems. It's compatible with headset caps with M6 bolts. Ultrastar 4 is 100% Made in Italy.
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Weight : |
14 gr. | 17 gr. | 5.7 gr. |
Construction : |
Ricavato dal pieno CNC | ||
Steer tube clamp diameter : |
1.1/4" Oversize | ||
Material : |
Totally CNC from AL 7075 Txx | Al 7075 T6 CNC | Totally CNC from AL 7075 Txx |
Adjustment range : |
25.0 - 27.2 mm | ||
Finish : |
Alluminio anodizzato nero/silver | Anodized, black and orange | |
Steering Tube fitting : |
with internal diameter from 21.2 mm to 25.0 mm | con diametro interno compreso tra 24.0 e 28.0 mm | 1.1/4" |
Top Cap Fitting : |
With M6 register bolt | With M6 register bolt | |
Bolt type : |
M6 | ||
Max tightening torque : |
10 Nm | ||
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