STAN KOZIATEK INVENTED tubeless ready systems, so it's no surprise his company's enduro rims come with tape and valves installed, blow up easily with a track pump and lock in even at low pressures.
The thicker rim walls and base help the Flow EXs shrug off hits that would have dented previous Stan's hoops, and the new wider profile means a sharper, stiffer, increased-grip feel through corners. The extra width can make shallow treads feel draggy on hardpack though, and the extra metal in the rim adds weight, giving a slow feel despite decent pick-up. Grunting the Flow EXs up to speed also scarred the alloy freehub body badly in a short time, jamming the cassette in place. The rear wheel comes with a QR axle, with 12x135/142mm kits available fcr 35$/40$
Weight: 1,880g (900g F. 980g R)
Rim: 25.5/29mm
Freehub lag: 12°
Tubeless type: taped
Sizes: 26in, 650b, 29in
Options: QR/15/20mm F, QR135x10/135x12/142x12mm R
XD: Yes