Sigma X Carbon Aero Stem
Sigma X Carbon Aero Stem
Sigma X Carbon Aero Stem
Sigma X Carbon Aero Stem
Sigma X Carbon Aero Stem
Sigma X Carbon Aero Stem

Sigma X Carbon Aero Stem

Regular price$479.00
/
Tax included. Shipping calculated at checkout.

  • In stock, ready to ship
  • Backordered, shipping soon

When we first introduced the original Sigma, it was a revolution - the first stem on the market with integrated cable management. Since then it's been imitated by many others, but never surpassed ... until now. The carbon-fiber Sigma X is the next generation in clean stem design, borrowing technology from our Alpha X aerobar, and porting it to an aero stem. It comes complete with our aero-matched stem spacers, ultra-low-stack dust cap (1mm), and more.


How does shipping work?

We offer a variety of shipping options for both US and international customers. Giving you the power to choose your transit time. You'll see multiple options on shipping times and prices that are calculated in real time based on your location.

How long does shipping take?

Transit times are dependent upon the shipping option you select. In general shipping within the US takes 3-5 days of transit time, but this will depend on your shipping selection.

International shipment transit times will vary. This again is dependent on the shipping option you've selected.

On every order you'll receive tracking as soon as your order ships. We encourage you to follow along with shipping updates with the carrier you've selected.

International shipping. What to expect.

We ship anywhere in the world. Typically international shipping goes smoothly with a few caveats.

You'll be responsible for Duties/Taxes when the order arrives in your country. Typically you'll be contacted by the carrier to fulfill their needs to have your order delivered. Often times that means you'll pay a fee / tax.

Imported product must typically clear customs. This process is completely out of our control and can take anywhere from a matter of hours, to a matter of weeks. What's most helpful for you is to keep yourself informed of tracking updates.

You'll receive tracking when your order ships from our facility. We have as much information as you do when it comes to tracking.

We also highly encourage our International customers to purchase shipping insurance at checkout. Because of the unpredictable nature of shipping overseas, its a small cost for peace of mind knowing you'll receive your order.

Shipping Insurance?

We highly encourage our international customers to purchase Shipping Insurance at checkout. A small price to pay for piece of mind. If something happens to your order in transit, you'll be able to file a claim and undoubtedly receive your order.

Unless otherwise stated in an individual item description, all store items are subject to the following return policy:

  • Items may be returned within 30 days of the original purchase date.
  • Item must be in brand new condition, uninstalled with no blemishes and complete with all original materials and packaging. Item must be in resell-able condition.
  • Please contact us, provide all relevant information about your order and the reason for the return. You will be issued further instructions for the return via email. Please include photos if relevant.
  • All items accepted for returns will be subject to a 15% restocking fee. The balance of the purchase price excluding shipping will be refunded.
  • If an individual item lists a deviation from this policy (such as no returns), then that deviation applies, and supersedes this return policy.

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Tech / Installation



All Carbon Construction

The new Sigma X is MUCH lighter and MUCH stiffer than its predecessor, owing to all-carbon construction. Now you can have an aero advantage without a weight penalty.

Born from Alpha X

The aero features from Sigma X were borrowed from our brand new Alpha X aerobar platform. The aero-matched spacers are identical, as is the wedge-style steerer clamp, and the removable centerpull cable stop. The Sigma X is basically the Alpha X, minus the bar.

No Fork Trimming

The new Sigma X eliminates the traditional drawback of integrated stems, which is the requirement of trimming your fork's steerer tube. The Sigma X cable cover stops just in front of the steerer tube, allowing you to maintain clean cable routing and also preserve the ability to change position in the future.

Integrated BTA Mount

The two bolts on top that affix the Sigma X cable cover --- those are spaced at 63mm for a water bottle cage or storage box. So you get a clean mounting option, no zip ties required.

Complete your rig


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