The Specialized Captain 2Bliss tire that is. After I finally got it to hold air - added sealant to run it tubeless- i rode Boyette yesterday. First off this thing rolls much better than the Nevegal I had on, plus its much lighter than the the full UST tire. The best part is that it really hooks up on a climb. I found that I could even stand up and power thru a climb without spinning out. Hey Anthem --- thanks for the recommedation on this one .. it was worth the switch.