Photo Coming Soon
Carbon-TiX-Cap Carbon Gloss Stem Cap
- road
- gravel
- mtb
This pairs well with
Carbon-Ti X-PlugHeadset expanderYou may also need
Carbon-Ti X-Cap TORX Spare BoltSmall partOverview
Why we love it
We love that a part you look at every ride can weigh almost nothing and still stand out.
- 01The cap is machined from 3K carbon fiber with a gloss finish, so it dresses up the top of your bike where you see it most.
- 02It comes with a color anodized Al7075 Torx bolt, and you choose which color, so the accent is yours to pick.
- 03At around 5 grams it is far lighter than most stock top caps, a small saving in a place that is easy to upgrade.
Specifications
- What it is
- A headset top cap for a threadless steerer
- Steerer size
- 1 1/8"
- Cap material
- 3K carbon fiber
- Cap finish
- Gloss
- Bolt
- AL7075-T6 aluminum, color anodized, TORX T25
- What the color changes
- The bolt. The cap is gloss carbon in every option.
- Color choice
- 7 colors
- Weight
- 5.8 g (cap and bolt)
- Made in
- Italy
What's included
- One Carbon-Ti X-Cap Carbon Gloss Stem Cap
- One AL7075-T6 aluminum TORX bolt (in the color you select)
Will it fit your bike?
Compatible with
- Threadless headsets with a 1 1/8 inch steerer
- Carbon, aluminum and steel steerers, with a star nut or an expander plug already fitted
- Road, gravel and mountain bikes alike
Not compatible with
- 1 1/4 inch (Over Sized) steerers, which take the Over Sized cap
- Threaded headsets, which use a locknut rather than a top cap
- Steerers with no star nut and no expander plug fitted
Confirm before ordering
Two things decide fit: the steerer diameter and what is already inside the steerer.
This cap is for a 1 1/8 inch threadless steerer. The steerer needs a star nut or an expander plug fitted, because that is what the top cap bolt pulls against to set your headset preload.
Questions
Which part does the color apply to?
The bolt. The cap is gloss carbon in every option, and the AL7075-T6 bolt that comes with it is color anodized in the color you select.
Will it fit my bike?
It fits most 1 1/8 inch threadless steerers, which is the common size on road, gravel and mountain bikes. For a 1 1/4 inch Over Sized steerer, the Carbon-Ti X-Cap Carbon Matte Stem Cap is made in that size.
Do I need anything else to fit it?
Your steerer needs a star nut or an expander plug already in it. If yours has neither, the Carbon-Ti X-Plug is the matching expander plug for a 1 1/8 inch steerer.
Is there a matte version?
Yes. The Carbon-Ti X-Cap Carbon Matte Stem Cap is the same cap with a matte finish, and it is also made in an Over Sized version.
What tool do I need?
A TORX T25 wrench, which is a standard shop tool. Tighten to your frame maker's top cap figure, because this bolt sets your headset preload.
Can I buy the bolt on its own?
Yes. The Carbon-Ti X-Cap TORX Spare Bolt is the same bolt, sold as a spare or in a different color.

