TriRig Alpha: Installation and F.A.Q.
images by Nick Salazar
Aug 1, 2013  hits 108,842

From the top view, it's easier to see just how deep the aero chord is on the Base Bar.
From the top view, it's easier to see just how deep the aero chord is on the Base Bar.

Alpha is here! Get yours in the TriRig Store

The revolutionary TriRig aerobar has finally arrived, and is now available to athletes worldwide. This article contains detailed information about the installation and adjustment of the aerobars, frequently-asked questions, and this high-resolution image gallery of all aspects of the bar. This project has been the most ambitious ever taken on by TriRig, and we are extremely proud of the result. This bar is fast, light, and highly adjustable. These three categories have, in other aerobars, always come at the expense of one another, but Alpha achieves superlative marks in all of them. This is truly a triathlete's aerobar, and we're delighted to bring it to you. There is a lot of detiled information in the gallery below, please have a look, and of course, enjoy the pretty pictures.


Back to article: TriRig Alpha: Installation and F.A.Q.


Complete Aerobar 

  • TriRig Alpha: this is our complete aerobar, and to us, it's everything. We designed it to provide the perfect fit and superlative aerodynamics at an incredibly low weight.
  • From the top view, it's easier to see just how deep the aero chord is on the Base Bar.
  • From every angle, this bar is gorgeous.
  • Complete Aerobar
  • From the front, there's pretty much nothing to see.
  • It takes very little hardware to bring the Alpha to life.
  • By changing the order in which the parts are stacked up and bolted together, it's very simple to set the extensions up UNDER the base bar, as shown.
  • This is about as low-stack as it gets. The arm pads sit level with the top of the stem clamp! There's nothing on the market that's lower.

Base Bar 

  • The Alpha base bar is incredibly simple. It's just a solid carbon fiber form, finished in beautiful unidirectional carbon and subtle graphics. The brake grip areas are textured, so you can use them without bar tape if desired.
  • From behind, you can see the extra-large cable port, which makes for really easy routing.
  • Because of its huge airfil, which makes for a large internal cavity, Alpha is probably the easiest aerobar you've ever routed cables through. This housing didn't need any fussing at all -- just feed it through the back, and it pops out the brake grip, no problem at all.
  • Even with housing in place, there's tons of room to route Di2 cables. And you can route them in any order, because ther's so much space to play with. NO need to plan things out like a military operation just to get your cables routed.
  • Nothing to see here. Which is everything you wanted to see.
  • Simple, elegant, and beautiful. That's Alpha in a nutshell.

Specifications, Details 

  • Alpha is comprised of very few parts, all of which are shown in this picture.
  • Some basic measurements of the bare Base Bar.
  • The lateral adjustment of the Arm Cups allow a wide range of stance width options.
  • The Arm Cups have twelve available positions for finding the perfect reach and stance width.
  • This graphic can appear confusing at first, but just describes the effective pad reach at each of the three reach offset positions on the Arm Cups. That effective pad reach would get added to the actual reach at your stem clamp to give you actual pad reach.
  • We struggled with how to best illustrate the wide variety of stack options on the Alpha, but hopefully this graphic does the trick. Because the hardware stack is totally modular, you can put things in ANY order As long as the top is an Arm Cup and the bottom is the Clamp Nut, you can do whatever you like in the middle. You could even flip the Extension Clamps to broaden the stance width of your extensions, Taylor Phinney style. And there's no extra weight or complexity involved in ANY of it. That's the beauty of Alpha.
  • Assembly of the Alpha is very simple: the top piece is always the Arm Cup, but bottom piece is always the Clamp Nut, and the rest is up to you. The remaining components (Extension Clamp, Base Bar, and any Spacers) can be stacked up in ANY order. They all nest into one another perfectly. This means you can mount the extensions UNDER the Base Bar without using any additional hardware. You just select the appropriate Thru Bolt based on how many Spacers you're using, and tighten everything down. It's that simple.
  • The Extension Clamp is the heart of the Alpha; this little 27-gram part is what makes the Alpha light in weight, immensely adjustable, and absolutely minimal in its frontal profile.
  • It's deceptively simple in appearance, but the Extension Clamp has a lot of engineering going on to coordinate the various aspects of Alpha's mechanics.
  • There is zero bolt occlusion on the Alpha, meaning that all bolts remain accessible at all times, regardless of your setup. Here you can see that even when setting the Arm Cups at very narrow stance widths, the Extension Clamp bolts remain accessible through the other holes in the Arm Cups. They were spaced at 15.5mm apart precisely for this reason.
  • The Clamp Nut is the last component of any Alpha installation. The Thru Bolts start from the Arm Cups, go through all the intermediate parts in whatever order you've installed them, and thread into this part, the Clamp Nut. This simple design is what gives Alpha its modularity, and enables the under-mount version to be achieved without the use of any additional parts.
  • And for the Weight Weenies, this shot is sure to impress. With a pair of TriRig Gamma Carbon extensions trimmed to size, this bar comes in at an absolutely scant 557g (that weight will vary slightly depending on how long you cut your extensions -- the uncut, extra-long 450mm Gamma Carbon extensions bring the bar to 599g as shipped). The TriRig Alpha is up to several HUNDRED grams lighter than its primary competitors.

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