Extended right to cancel until 31.01.2023 for all items ordered by 25.12.2022.

More than 800 brands
800.000 active customers
Stans NoTubes

Stan's NoTubes Arch CB7 27.5 Inch MTB Carbon Rim

Stan's NoTubes Arch CB7 27.5 Inch MTB Carbon Rim

Imagine the ultimate carbon trail rim. It's wide enough to offer tire stability and control, but narrow enough that your 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 a tubeless set up, it offers the easiest and most trusted system ever made. So Stan's created the Arch CB7 to be that ultimate carbon trail rim.

Five years of continual development and refinement have led to the RiACT radial impact absorbing technology. Unlike other carbon rims that ride stiff and transfer impacts and vibration to the suspension and rider, the special layup and shape deflects up to 10mm radially to soak up speed-robbing impacts, all while being laterally stiffer than most other carbon and alloy rims on the planet. The result is a rim that defies pinch flats and rolls faster over every trail.

Arch CB7 rims also feature Stan's patented Bead Socket Technology, the original tubeless-ready rim design that 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. 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.


  • Designed for trail riding and enduro racing
  • RiACT system absorbs impacts and rolls faster
  • Bead Socket Technology for easier tubeless inflation and more reliable seal
  • Low-profile sidewalls for proper tire shape & reduce rim weight
  • WideRight rim design optimized for 2.25 - 2.50" tires


RiACT rims a three times stiffer than Stans regular aluminum rims and absorb radial impacts to withstand bigger hits and roll faster.

The WideRight profile increases tire volume without negatively affecting tread shape or sidewall height.

Bead Socket Technology (BST) rims are designed to match the shape of your tire's bead to create a safer and more secure air tight interface.
Included in delivery: 1 rim
Material: carbon
Weight supplement: manufacturer information

Fact Sheet of Stan's NoTubes Arch CB7 27.5 Inch MTB Carbon Rim

Product Name: Stan's NoTubes Arch CB7 27.5 Inch MTB Carbon Rim
Manufacturer: Stan's NoTubes
Item Code: STN407846
activity: Cycling
material: Carbon
usage bikesport: MTB, All-Mountain
brake type: Disc Brake
wheel size: 27,5" / 650B (584mm)
tire type: Wire Bead Tire, Folding Tire, Tubeless Ready
ERD - effective rim Ø: 563mm
Air pressure: 2.7-2.5bar
ETRTO: 26-584
max. spoke tension: 1030N
valve hole diameter: 6.5mm
rim width: 32mm
inner profile width: 26mm
rim profile height: 19.5mm
Model year: 2021
Color: Black
weight: 450g
manufacturer item code: 28 holes: RTAC70001 | 32 holes: RTAC70002
Manufacturer page: http://www.notubes.com/