Stan's NoTubes ZTR Flow EX is lower, wider, and meaner, offering a lower profile sidewall and redesigned Bead Socket Technology for maximum durability and tire seal on even the most punishing of technical trails. Stan's Notubes kept the weight low, but the new EX offers 14% thicker sidewalls for maximum dent resistance and a 33% thicker spoke bed for added pull-through strength.
Increasing the outside width of the rim to 29.1mm and the interior width to 25.5mm let us reshape the bead socket for an even tighter seal and allowed our internal arch to add even more stiffness to the rim's structure. The Flow EX: the stronger, faster rolling, and best sealing tubeless rim.
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