The NOX Teocalli Carbon Fiber Rim is the ultimate trail bike rim for 27.5 bikes. NOX Composites uses innovative designs and technologies, including asymmetrical offset, UniWeave layup, RockGuard bead lip and Anti-Burp Bump, all of which work together to provide the ultimate in stiffness, durability and tubeless compatibility at the lowest weight possible for trail riding. Offering an ideal compromise of width (26mm internal) and low weight combined with NOX's super strong 3mm wide Rockguard Hookless bead, it's the sweet spot that will fit many rider's style perfectly. At only 350g, it's tempting to compare this rim with other XC rims, but it was really designed as a tough trail rim that's light enough for the occasional race. UniWeave is NOX's unique carbon layup that uses two different carbon fiber fabrics to improve strength and stiffness, plus maximizes durability. RockGuard is a combination of extra material thickness and ideal surface fiber orientations to provide the maximum impact resistance, while the Anti-Burp Bump helps prevent the tire from "burping" air. For every day riding, or if you do a bit of everything from trail riding, XC riding and an occasional XC race, you can't go wrong with the Teocalli. Rim features 32mm external width, 26mm internal and 22mm depth.