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The X PLUS 27.5” Boost wheel set weighs in at a sturdy 1979g, ready to run anything from a standard 2.3 width tire, all the way up to a mid-fat 3.2. The rim is 39mm wide, 21mm deep, 6061series alloy and sleeve-joined after extrusion. A fine bead blast finish keeps them looking new and free of minor dings and scratches longer than a polished or anodized finish. They are built around our Mercury Disc six-bolt, 28 spoke count hubs using Sapim Race double-butted spokes to trim weight where we can, while not detracting from durability, or reliability. Brass, not alloy, nipples are used in order to minimize any oxidation that can weaken and degrade nipples over time, especially given many mid-fat wheel sets are being used for winter trail riding. The boost-spaced rear hub is beefed up with a reinforced axle to make a stiff, and rock solid rear triangle to accommodate the ever more common extended range drive trains. The rims are tubeless compatible, with a 1.5mm bead socket that makes setting up tubeless hassle-free. In addition to easy tubeless conversion, the front, and rear hubs are running the same bearings across the board (6902-2rs), which makes for a simple repair if the bearings ever need replacing after several seasons.
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