Cambria Bicycle Outfitters Since 1986

Stans No Tubes ZTR Flow EX 27.5" MTB Wheelset

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sku: 111283

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Stan's Notubes

Stans No Tubes ZTR Flow EX 27.5" MTB Wheelset

With multiple World Cup and World Championship victories already in the books, improving the legendary Flow wasn’t easy, but input from the best riders in the world and countless hours spent sweating even the smallest of details has led to a rim that redefines what even Stan’s thought was possible. 

Stan's NoTubes Flow EX 27.5 Wheelset rim is lower, wider, and meaner, offering a lower profile sidewall and redesigned Bead Socket Technology for maximum durability and tyre seal on even the most punishing of technical trails. At the same weight as the original Flow, the new EX offers 14% thicker sidewalls for maximum dent resistance and a 33% thicker spoke bed for added pull-through strength.

Stan's NoTubes Flow EX 27.5 Wheelset had outside width of the rim increased to 29.1mm and the interior width to 25.5mm to let Stan’s reshape the bead socket for an even tighter seal and allowed their internal arch to add even more stiffness to the rims structure.


  • Total Weight: 1850g (27.5in)
  • Max recommended rider weight: 250lbs
  • Rims: ZTR Flow EX 27.5
  • Rim Material: 6061 Alloy
  • Rim Depth: 17.8mm
  • Rim Width External: 29.1mm
  • Rim Width Internal: 25.5mm
  • Front Hub: 3.30 Disc Front 15mm 
  • Rear Hub: 3.30HD 12x142
  • Hub Bearings: Cartridge
  • Spokes: 2.0/1.7 Black Stainless
  • Spoke Nipples: Black brass
  • Front Spoke Lacing: 32H, 3 Cross
  • Rear Spoke Lacing: 32H, 3 Cross
  • Spoke Length Front (L/R): 270mm/272mm (27.5in)
  • Spoke Length Rear (L/R): 272mm/270mm (27.5in)
  • Shimano and SRAM 8/9/10 speed compatible


Collections: MTB Wheels, Wheels