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Stan's NoTubes
ZTR Flow EX Wheelset - 29in

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Don't worry though, we have a lot more 29" Mountain Bike Wheels - Tubeless in stock than that.

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Big-time big wheels.

There was a time when 29er mountain bikes were limited in their capabilities because big-wheels hadn't caught up, in terms of toughness, to smaller, stouter 26-inch wheels or 27.5-inch wheels. Wheelsets like the Stan's NoTubes ZTR Flow EX Wheelset, however, completely change the game, giving long-travel 29-inch bikes a pair of hoops with the strength and stiffness to keep up with their capabilities.


Redesigned last season, the new Flow EX rim is now even wider, and it features a redesign of Stan's NoTube's Bead Socket Technology for an enhanced tire-to-rim seal. Additionally, this proprietary technology enhances the rim's durability, which makes the Flow EX the strongest rim in the NoTubes' line. The sidewalls are now 14% thicker than the prior iteration, further enhancing rigidity and a resilience to dents. You'll also find that Stan's made the EX's spoke bed 33% thicker. So, spoke pull-through is basically a thing of the past.


The outside-width of the rim has been increased to 29.1mm, and the interior width has also been stretched — reaching out to 25.5mm. Aside from enhancing tire volume and roundness, and permitting a tighter rim-to-tire seal, the wider rim increases the size of the tire's contact patch with the ground, making for greater traction while climbing or cornering. Meanwhile, the rim width has been followed by a slight tweak to the internal arch's profile, providing even more lateral stiffness. Like the old Flow EX rims, Stan's NoTubes uses 6061 aluminum, and it's been drilled for 32 spokes with no eyelets. The EXs are laced with 2.0/1.7/2.0 butted steel spokes and alloy nipples.


That lacing affixes the hubs to Stan's 3.30 HD hubset, which house smooth-spinning chromoly cartridge bearings that ride on lightweight 7075 alloy axles. The rear hub body features large, 58mm flanges. Meanwhile, the drive side houses a hardened 30-point engagement ring, while the non-drive side is machined to reduce weight. The front hub also gets a 58mm flange in order to balance strength and weight. The freehub is aluminum and it's compatible with Shimano and SRAM cassettes, and an SRAM XD 1x freehub body is available separately.


The Stan's NoTubes ZTR Flow EX 29-Inch Wheelset comes with Stan's rim tape and valve stems installed for instant use — just add tires, sealant, and air. The front hub ships with a 20mm axle and the rear is set-up for a 12x142mm thru-axle. End caps are included to convert the front to a 15mm thru-axle or the rear to a standard quick-release.


Details

  • Wider rim profile (29.1mm outside width and 25.5mm interior width)
  • New Bead Socket Technology
  • 14% thicker sidewalls
  • 33% thicker spoke bed
  • Reshaped internal arch for improved lateral stiffness
  • Stan’s 3.30 HD hubset
  • Item #SNT000N
Rim Material
alloy
Wheel Size
29 in
Rim Width
[internal] 25.5 mm, [external] 29.1 mm
Brake Compatibility
rim brake only
Spokes
2.0/1.7/2.0 butted
Manufacturer Warranty
1 year

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