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numbers for the EM Road N1 this concept as
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Before this summer I had never worn a Pearl Izumi running shoe. I’m familiar with the brand from their high-end technical clothing, but had thought of them more as a cycling brand that had only taken tentative steps into You are not allowed to view links. Register or Login to view. the running market. That being said, I had heard rumblings about a new line of shoes they were working on, and when Timothy Olson won Western States in one of their in-production trail shoes the internet chatter about the brand really picked up.

A few months ago a rep from Pearl Izumi contacted me to see if I’d like to try out one of the shoes in their new E-Motion line. They wound up sending two pairs – the EM Road N1 for me, and the EM Trail N1 for Nate. We’ve now had time to get some miles on the shoes You are not allowed to view links. Register or Login to view. and are ready to render our verdicts (Nate’s review should come along soon).The sole is really the story for the Pearl Izumi EM Road N1. All of the shoes in the Pearl Izumi E-Motion line feature something they are referring to as dynamic offset. As described in the video below, PI talks about how offset changes as the foot rolls You are not allowed to view links. Register or Login to view. through during the running stride (they use a heel striking gait as the default):Looking at the stack height numbers for the EM Road N1 this concept as shown in the video initially didn’t make much sense to me. Running Warehouse reports stack heights of 22mm in the heel, 15mm in the forefoot. Measuring with my calipers I get about the You are not allowed to view links. Register or Login to view. same when the insole is removed. Pearl Izumi lists the EM Road N1 as only 1mm offset – my guess is that they are including the insole, and also taking into account dynamic You are not allowed to view links. Register or Login to view. offset during the stride. I wish I had measured the insole before putting miles on the shoe since insoles tend to compress quickly in certain areas, but I found that the insole thickness changes along it’s length:I’m wondering if the insole design is partly the reason that this doesn’t feel like a 7mm drop shoe? The thicker part You are not allowed to view links. Register or Login to view. of the insole under the midfoot doesn’t so much feel like arch support as it does just a thickening in that region. The sensation is somewhat like the Skechers GoRun 2, which also has a smooth ride (but is a much softer shoe).In the video Pearl Izumi talks about how they moved the beginning of the toe spring angle back by about 20mm, You are not allowed to view links. Register or Login to view. and this seems to create a slight rocker like feel to the sole of the shoe (probably assisted by the thickening of the insole under the midfoot). If you land on your heel (I’m a very mild heel striker to midfoot striker in most cushioned shoes), you also compress the heel a bit and then roll forward, so static drop measurements may not reveal what actually happens if the heel is more loaded than the forefoot. The net effect of all of this is that the shoe delivers on Pearl Izumi’s promise of an incredibly You are not allowed to view links. Register or Login to view. smooth ride, though it took me a few runs to really feel it. To me it runs a lot like a 4mm drop or lower shoe.
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