Stan's NoTubes 27.5" Rims | Arch Ex, Tubeless Ready, Disc Brake Compatible

Bead Socket Technology construction provides superior tubeless compatibility. The internal arch design provides durability and stiffness, two assets especially important for heavier riders. Although lightweight, the Arch EX can handle aggressive trail riding. Quite possibly the best rim for any situation. Inspire confidence in your ride with the ZTR Arch EX.

Features

• For trail and all mountain use
• Our most versatile rim design
• Bead Socket Technology (BST) for superior tubeless performance
• Lightweight rim profile with a reinforced internal arch
• 24.6mm rim width increases tire volume for more control and less rolling resistance
• Compatible with standard tires when used with or without tubes

About Stan's:

INNOVATION IS WHAT WE DO.

It all started in 2001, when a rider named Stan Koziatek had an idea. Frustrated with punctured inner tubes and believing mountain bike tires could perform better without them, Stan developed a way to replace inner tubes with a liquid sealant. Stan’s system created a tire that sealed itself almost instantly when punctured, but that was only the beginning. With no inner tube, tires treated with Stan’s sealant offered more traction, more control, and more comfort. They also rolled faster. The performance advantages were tremendous, and soon racers at the highest levels of the sport were asking Stan to help them go tubeless.

Stan's ability to solve problems and create innovative solutions was matched by co-founder Cindy Koziatek's drive to develop the business and market those innovations. It was Cindy who realized the company needed a web site to help reach new customers and explain tubeless to more riders. At races and online, Stan and Cindy's efforts to introduce more people to the concept helped establish modern tubeless systems.

Today, riders and racers around the world rely on the tubeless technology Stan developed, and our sealant has been honored as one of the most important innovations in the history of cycling. “The First Name in Tubeless” is more than just marketing to us. It’s who we are.

And we’re still leading the way.

Everything we learned about sealing conventional rims for tubeless use led us to develop our own line of rims and wheelsets. Featuring our patented Bead Socket Technology, our rims and complete wheelsets are regarded as the easiest and most reliable made. For over a decade, our products have set entirely new standards for performance, created completely new categories, and redefined what others thought was possible.

But we’re just getting started.

Today our focus is carbon fiber and impact resistance. Our ultralight, vibration-damping Valor and Bravo carbon fiber wheelset features the first rim to take full advantage of the real benefits of carbon fiber. Using everything we learned from tubeless tires, we developed our Radial Impact Absorbing Carbon Technology (RiACT), a special rim shape and special manufacturing process that absorbs vibration radially, while still being incredibly stiff laterally to resist twisting forces and improve handling .

We also continue to push the development of high-performance tubeless systems for road bikes, offering both carbon fiber and aluminum rims specially designed to handle the higher pressures of tubeless road tires.

With almost eighteen years of constant evolution, Stan’s Sealant also continues to pull further and further away from the imitators. In 2016 we also introduced a second formula, capable of sealing even larger punctures.

Innovation will always be the driving force behind Stan’s NoTubes. Why?

Because we ride bikes. We ride bikes to test our designs, refine them, and then test some more. But mostly we ride bikes for the ideas. Every innovative product we’ve created has started out as an idea we had while out on a ride. There’s something about riding a bike that makes you want to go even further the next time, even faster. There’s something about riding a bike that makes you push the limits. That’s our inspiration.

Constantly looking forward, beyond those limits, that’s how we continue to build truly revolutionary products, products that aren’t just slightly better in one or two categories, but that raise the bar in every way. Our wheelsets and tubeless systems are lighter while being more reliable. They grip better for more control while rolling faster to help you push your own limits.

To us, true innovation means always looking beyond limitations. That’s how we develop our products, and that’s why we ride.