Easton took their stalwart XC One wheel and pulled it into the future by completely redesigning the entire wheelset. They've not only trimmed 30-grams out of the pair, but they've made them UST compatible (yep, light and UST ready right out of the box) and added a millimeter to the rim width for enhanced tire profile. They've also given the EA90 XC a revised rim extrusion, welded seam and proprietary Easton hubs with a full complement of sealed bearings for superb durability.