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Skimo Co

La Sportiva Raceborg II Boot


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While you should never compare yourself to others, you can definitely compare the Raceborg II against its predecessor. Losing the cable-actuated ski/walk mechanism and instead using a more traditional design, the Raceborg II is quick to transition and gains reliability relative to its forebear. The 75° range of motion and light carbon fiber cuff make for an excellent climbing platform while the rigidity of the carbon fiber cuff keeps the boot stable for the downhill. Because La Sportiva doesn’t believe in “analysis paralysis,” the Raceborg II has four forward lean options at 14°, 16°, 18°, and 19°, letting you fiddle to find the “ideal” setting till your heart’s content. On top of this, the Grilamid lower shell can be punched and stretched, offering customization to those with difficult feet. Finally, the Spider Ratchet Lacing system, while not for those suffering from arachnophobia, allows the instep strap to evenly distribute pressure over the top of the lower shell, helping secure the foot for demanding descents. Terminating the competition, the Raceborg II allows you to attack the uphill with reckless abandon while still offering confidence-inspiring downhill performance. You can almost hear the boot saying, "Come with me if you want to win."

  • Two-piece Ultralon liner offers customization and comfort.
  • Ergal aluminum ski walk lever and lace attachment across the cuff are quick and reliable.
  • Spider Rachet lacing system provides even tension across the instep, making for a comfortably snug fit.
  • 75° of motion (35° back / 40° front) will make the skin track fly by.
  • Four forward lean positions of 14°, 16°, 18°, and 19° allows for individualized customization.
  • La Sportiva Racegrip sole is ISMF compliant and provides reliable traction in icy spots.
  • Stretch gaiter is abrasion and water-resistant, keeping the snow out of your boots.
  • Toe and heel molding is compatible with most automatic crampons.
  • S4 EVO Inserts help with quick step-in to Ski Trab bindings.
convert to ounces
734g [27.0]
758g [28.0]
Weight (pair) 1468g [27.0]
1516g [28.0]
Buckles   2
Boot Sole Length   277mm [25.5/26]
287mm [26.5/27]
297mm [27.5/28]
307mm [28.5/29]
Binding Compatibility   Tech only
Cuff Rotation   75°
Forward Lean(s)   14°, 16°, 18°, 19°
Specs Verified Yes
Materials   Grilamid shell, Carbon Fiber & Grilamid cuff
Liner   Two piece Ultralon
Sole   Racegrip
Skimo Co Says
Usage Rando racing, speed touring
Notes Grilamid lower is receptive to boot work if need be
Bottom Line Excellent update to an excellent boot
Compare to other Race Boots

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Questions & Reviews

Question from Kacper R
Does anyone have any experience with using this boot already? I'm curious how does it compare (uphill/downhill) with Aliens 1.1 which I own but are killing my feet unfortunately (blisters around heel + uncomfortable rubbing around the calves).
Answer from Carlos M
Hi Kacper,

While I have not skied in them, I can give you some impressions from trying them on side by side. The Raceborg is slightly wider around the forefoot than the Alien, and a little tighter around the ankle. It's possible that it would give you a bit better heel hold. I do think that the lower closure of the Raceborg holds the foot in the heel pocket a little better. In terms of instep volume, they are very comparable.

In terms of the ski mode, the Alien is stiffer and the full tongue feels a bit more supportive. The Raceborg feels a bit more progressive, it bows out a little more around the ankle when you flex into it.
Answer from Kacper R
Thanks Carlos for a quick reply. Based on your observations, it seems encouraging, as I had problems with Aliens to tighten them up to keep heel in place but retain forefoot comfortable (or even with any blood flow :))

I ordered Racetrons II so I'll give them probably a try once they arrive and if initial fit will be OK. I also hope that due to foam that goes around the upper it will be more comfortable there as all border points between back foam / tongue were problematic for me.

I'll do some update here after initial usage
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Question from AARON O
How high does the lower shell go? Does it cover the ankle? I have bonespurs on my ankle and appreciate that the Scarpa 1.1 does not go up above ankles.

Also, can you include a pic of the liner? Not sure I can picture what the 2 piece liner looks like?

Answer from Gabriel I
Hi Aaron, the shell is fairly low cut for high range of motion, similar shape to the Alien 1.1. The high point of the lower you can see in the product image near the cuff is about as tall as it gets. I've attached a picture of the liner.
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Question from Jonathan M
I am thinking of switching from my Alien 3.0s to the Raceborg II boots for comfort reasons. I am wondering what the downhill performance difference of these two boots are. Any insight would be greatly appreciated.
Answer from Jeff
Jonathon, The Raceborgs are a bit wider and can be punched, so will be more accommodating then a full carbon boot.
As you know, the Alien 3.0 are Very Stiff, and the definition of a Non Progressive boot. With a regular Grilamid lower shell, you will have a softer and more progressive flex. In short, will be easier to ski.
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Question from Ben
Is there any difference compared to the original Raceborg other than the updated ski/walk lever/mechanism thing? Why did the price go up by $800?
Answer from jbo
Hi Ben, aside from the lever and color changes, Sportiva infused some carbon into the lower shell to improve the downhill performance. They are actually charging the same amount for the "2" as they originally did for the "1", we just had a lower price point on the previous edition (did not buy at the original price as we deemed it too high). This version is more competitive in price v. performance.
Answer from Ben
Based on the photos it looks like there is also a higher gaiter with the new version, is that correct?
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