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The Crag is the most overstable midrange in Vibram's line to date. It will hold a hyzer in almost any conditions. The Crag has a very deep rim and angular wing that minimizes turnovers and maximizes grip.
Like all Vibram discs, the Crag is made from a high-density rubber compond, that gives it outstanding durability and grip. The tackiness of the rubber will also help this disc sit down on spike hyzers. The Crag, like all Vibram discs, has the yellow Vibram insignia is molded in to the disc - very cool.