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Christian Allen shows us the Nike ACG Ultrafly 2 & discusses his race year
Aug 29, 2025
Our detailed analysis article: https://www.roadtrailrun.com/2025/08/analysis-nike-launches-acg-ultrafly.html
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Okay, we're with Christian Allen of the
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Nike ACG or the racing department and
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Christian's going to give us a little
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introduction to the ACG Ultrafly 2 and
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we went running earlier today in them
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and I really enjoyed my first run.
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Really agile, fun shoe, lots of
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cushioning and Christian is super
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versatile. He not only ran a 210
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marathon this year, but he's also the US
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vertical K champion. Okay, Christian,
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tell us about the shoe and and what
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you're thinking.
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Yeah, it's fantastic shoe. I'm super
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happy that ACG is adding this to our
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quiver of racing shoes. Um, it's 289 g
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out of men's size 10. We got a 39 to 31
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mm uh stack offsets. Um, and then on top
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of that, the shoe comes with a full
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Vebram Mega Grip. Uh, super grippy,
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really not much slippage. We tested it
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out here on the slippery wet rocks here
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in Shamine. Uh, and it's a carbon plate
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uh, in there as well. So, you kind of
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got just the typical carbon plate to add
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to some of that stiff rigidity to help
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with fatigue over time in the MTP joint.
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So, you're not having to expend as much
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energy or force. But it's a phenomenal
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shoe.
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And I see there's kind of a web here
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that kind of stabilizes.
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We've got Zumx. I really enjoyed my run
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in them. I was surprised. Uh they're
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quite rigid, but they run like a
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flexible shoe. So I think the carbon
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plate they said is maybe split down the
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middle. Very nice shoe. And so what
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what's next in your year, Christian?
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I'm I'm going to finish off the year
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with a vertical champions at Worlds uh
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in September out in Camp Frank. And then
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I will continue at the Golden Trail
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final in Italy. Um, and maybe I'll have
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a few small world uh or just trail races
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after that. But then I'll gear up for
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the US marathon champs in December at
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CIM.
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Excellent. What versatility. Thank you
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very much for for speaking with Roadt
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Trail Run and for joining the run. It
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was great.
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It was a pleasure. Thank you. Okay.
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