Light and fast.
Stan's NoTubes continues to sit atop the rapidly evolving world of tubeless wheels with its advanced rim design and unparalleled tubeless reliability. Not surprisingly, you'll find wheels such as the Arch EX 27.5in Wheelset attached to almost any type of bike out on the trails. Stan's brings together the light, fast profile of its XC-specific Crest and the bombproof internal arch design of the gravity-focused Flow to create an all-around wheelset built to tackle a huge variety of trails. Since it's lighter, wider, and even more durable than the original Arch, the Arch EX will shred even the most aggressive, technical trails.
This wheelset is built with Stan's signature Bead Socket Technology (BST), which features low profile sidewalls that provide a better seat for the tire bead and allow for a heap of benefits compared to standard rims with higher sidewalls. When set up as tubeless, BST rims provide an exceptional seal while allowing the tire to hold a greater volume of air. This interface lets the tire maintain its full shape for a wider, more stable rolling platform than if the same tire were mounted on a standard rim.
When paired with BST's benefits, the ability to run up to 30% lower air pressure in a tubeless system results in exceptional tire stability, better handling, solid cornering, and better overall control out on the course. If you prefer clinchers, these rims are also compatible with tubes, with the lower sidewall drastically reducing pinch flat risk by reducing the amount of material present for the tube to pinch against. Either way, this means less time sitting in the dust wrestling with a flat at the side of the trail and more time shredding your favorite loops.
Stan's laces the Arch EX rims to its all-new Neo hub set, features smooth-spinning, oversized chrome bearings that glide on a stiff, strong, swaged axle. The Neo holds the bearings at a wider stance for a claimed threefold increase in durability compared to standard hub designs. It also boasts four precision pawls that simultaneously engage a forged steel, 36t ratchet ring for snappy engagement to power over rocky cruxes. Stan's builds in its new SealLock end caps for easy installation and Slip-Fit axle ends for easy conversion.
The Stan's NoTubes Arch EX 27.5in Wheelset comes complete with Stan's yellow rim tape and valves already installed for tubeless use — just add your favorite tubeless-ready tire, Stan's award-winning sealant, and air. The wheels are available with a QR/15mm front and 142 x 12mm rear combination with either a Shimano/SRAM or SRAM XD freehub. Please note that the Arch EX 27.5in Wheelset has a maximum recommended rider weight of 230lbs.