The engineers at Industry Nine knew that they had a good thing going with the best selling Trail rim. So when the colorful, North Carolina based manufacturer known for its snappy hub engagement and precise machining updated the popular rim, it did so with a just a few changes. The new tubeless ready Trail 245 27. 5in Wheelset retains all of the reliability of its predecessor with a few changes to give it an even more bombproof construction than before. Industry Nine starts with its dependable aluminum rim construction for the Trail 245s, increasing the internal width to 24. 5mm to better accommodate modern tire widths. The rim also features I9's new Second Generation Tubeless profile. The new design entails wider bead seats, a shorter, more tapered bead wall, and a more flared shape, all of which serve to improve the tires' flat resistance at low pressures. I9 also adds material to specific points that are vulnerable in impacts, improving the rim's dent resistance. All in all, these changes don't result in a drastic weight difference, adding negligible weight to the entire setup compared to the previous version, and they result in a rim that's better equipped to match the versatility and responsiveness your 27. 5in frame demonstrates on the trails. The Trail 245s are finished with I9's Torch hubs, which are built with the functionality that has earned Industry Nine its cult following. Industry Nine uses its own proprietary mechanism of two sets of three pawls phased three degrees from each other to provide 120 points of contact and a near instant three degrees of engagement. It's a design they haven't found any room to improve upon for the Trail 245s. Rim meets hub courtesy of I9's signature, lightweight 7075 T6 aluminum spokes, which thread directly into the hubs to eliminate extra movement and parts.