DT Swiss

XR 421 Rim - 29"

DT Swiss XR 421 Rim - 29" is a lightweight aluminum 29-inch XC mountain bike rim built for riders who want quick acceleration and precise handling on technical cross-country and fast trail terrain. Its 30 mm internal width gives modern XC tires the sidewall support they need to hold a reliable line in corners, while the asymmetric rim profile helps create a more balanced, durable wheel build by improving spoke tension equality. With a tubeless-ready design, the XR 421 supports lower pressures for added traction and control without giving up the efficient rolling feel XC riders prioritize.

• 30 mm internal width - Supports tires up to 2.7" for a larger, more stable contact patch and better cornering support
• Asymmetric rim profile - Helps equalize spoke tension for a stronger, longer-lasting wheel build
• Weight starting at 548 g - Keeps rotating mass in check for responsive climbing and punchy acceleration
• 28-hole drilling - A practical choice for lightweight XC builds without chasing fragile spoke counts
• Tubeless-ready design - Enables lower pressures for improved traction and reduced pinch-flat risk versus tubes
• Aluminum construction tuned for XC - Delivers a dependable balance of low weight, impact resilience, and everyday serviceability