Unleash trail-ready performance and tubeless reliability with the Stan's NoTubes Arch MK4 rim, meticulously engineered to be a durable and lightweight foundation for your custom wheel build.

The Stan's NoTubes Arch MK4 rim is a definitive solution for mountain bikers who demand a perfect balance of durability, low weight, and a seamless tubeless experience. The fourth generation of the legendary Arch, the MK4 features Stan's patented Bead Socket Technology (BST) rim profile, which provides a secure and easy-to-inflate tubeless setup while ensuring a low-profile bead wall for a more compliant ride. Constructed from high-quality aluminum alloy, this rim is built to withstand the rigors of trail riding while keeping rotating weight to a minimum. With its 27.5-inch diameter and a 32-hole spoke count, the Arch MK4 is the ideal component for a custom wheel build that delivers uncompromising performance on any trail.

• Arch MK4 model provides a perfect balance of durability and low weight.
• Bead Socket Technology (BST) for a secure and easy tubeless setup.
• 27.5-inch diameter and 32-hole drilling for a custom wheel build.
• Constructed from durable and lightweight aluminum alloy.
• The definitive rim for high-performance trail and all-mountain riding.