Stan's Arch MK4 Rim - 27,5'' - 28H - Black / Gray

Arch MK4 Mountain Bike Rim

Designed for every trail, the Arch MK4 mountain bike rim has evolved from the original tubeless-ready design that revolutionized mountain biking over a decade ago. Featuring a 28mm internal width and an ultra-strong 6069 aluminum alloy, this rim offers unmatched versatility for both XC racing and enduro riding. Its lightweight construction makes it ideal for climbing, while its robust design ensures confident descending on challenging terrains. The BST-Asymmetric shape enhances spoke angle and wheel strength, providing easier tubeless inflation and superior tire retention, even under aggressive cornering. Crafted with a reinforced spoke bed and welded joint, the Arch MK4 balances control, durability, and weight perfectly. Whether powering up rocky switchbacks or carving berms, this rim is built to handle all your mountain biking adventures. Key features:

• Versatile 28mm internal width optimized for 2.2-2.5" tires
• Lightweight and durable 6069 aluminum alloy with reinforced spoke bed
• BST-Asymmetric design for improved spoke angle and wheel strength
• Easy tubeless inflation with Stan’s patented Bead Socket Technology
• Welded joint for added durability and strength