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Mountain Rims

Stans NoTubes Arch CB7 Rim

Stan's NoTubes has evolved the Arch rim concept several times, with the 6069 aluminum MK3 trail rim one of the best available. t's wide enough to offer tire stability and control, but narrow enough that your 2.35" tires still corner great. It's light enough to respond instantly from the first pedal stroke, but built with the kind of durability only developed on the Enduro World Series circuit. And when it comes to tubeless set up, it offers the easiest and most trusted system ever made. More than anything it has a clear advantage, a ride quality not found on any other rim. Now step forward, with the essential Arch, but made in carbon fiber, which has several advantages over aluminum. NoTubes created the Arch CB7 to be the ultimate carbon trail rim, and it is hard to argue against them.

Instead of offering a generic carbon rim option, NoTubes created innovative designs that make an actual difference on the trail. Five years of continual development and refinement led to the Arch CB7's RiACT radial impact absorbing technology. Unlike lesser carbon rims that ride stiff and transfer impacts and vibration to the suspension and rider, the special layup and shape of the Arch CB7 deflects up to 10mm radially to soak up speed-robbing impacts, all while being laterally stiffer than just about every other carbon and alloy rim on the planet.

The specifications? How about a 475 gram 29er rim, with a 26mm Internal Rim Width, 32mm External Width and a 19.5mm profile. The result is a strong, large footprint rim that defies pinch flats and rolls faster on every trail, while still offering the compliance you desire and the tubeless performance you require. Available in 29 and 27.5" sizes, and offered in 28 or 32 hole for both wheel sizes, NoTubes has your replacement or custom wheel option needs covered.

Arch CB7 rims feature Stan’s patented Bead Socket Technology, the original tubeless-ready rim design that, combined with their sealant, has become the foundation of all current tubeless-ready systems. The competition can't copy the Arch CB7’s low-profile sidewalls and patented Bead Socket Technology rim design, just try to mimic it's effectiveness. The BST system has become the most copied tubeless rim technology, but nothing comes close to the ease of setup and reliability of a true BST tubeless rim.

While carbon rims actually carry more cost upfront, in many ways they are superior to aluminum, with more benefits, and much more durable than you'd expect. Lightweight aluminum rims can't really take much damage. Stan's NoTubes is committed to both their carbon rim engineering and to your well being. Their confidence is backed by a 2-year warranty and lifetime crash replacement program. You MUST register your wheels with them by visiting the NoTubes website, going to the Warranty page, and submitting the required information. if you have any questions about the warranty and/or process, please contact Stan's NoTubes directly.


  • Mountain disc only carbon tubeless ready rim for trail riding and Enduro racing
  • RiACT carbon rim construction/system absorbs impacts and rolls faster
  • Low-profile sidewalls promote proper tire shape and reduce rim weight
  • Patented Bead Socket Technology rim shape- easier tubeless inflation and more reliable seal
  • WideRight rim design optimized for 2.25 - 2.50” tires
  • Rim spec: IRW 26mm, ERW 32mm, Profile 15.5mm, Tape required 25-27mm
  • ETRTO: 584x26.0 (27.5") / 622x26.0 (29")
  • ERD: 563mm (27.5") / 600mm (29")
  • Max Spoke Tension: 105kgf (1030N)
  • 2-year warranty and lifetime crash replacement with registration
  • Max Rider Weight: 250lbs
  • Max pressure by tire size: 2.25" 39psi, 2.5" 36psi
  • Does not include tape or tubeless valve
  • Hole count options: 28, 32
  • Size options: 29", 27.5"
  • Finish: Carbon Black
  • Weight: 475g (29"), 450g (27.5")

*Register your wheels through the NoTubes website to ensure warranty protection*