DT Swiss

DT Swiss RR 421 Disc Brake Rim

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The DT Swiss RR 421 disc brake rim is designed to build lightweight road wheels.  The RR 421 features an asymmetric shape to help improve left/right spoke tension balance.  A 20mm tubeless compatible internal width provides a natural fit for modern high volume tires.

Wheelbuilder can handcraft a custom DT Swiss wheel for almost any application.  Whether you're looking for heavy duty wheels to improve durability, or unique colors and hub combinations to match your style, we can help personalize your next DT Swiss wheelset. 

Visit our Custom DT Swiss Road-Gravel-CX Disc Brake page to configure your wheels exactly the way you want.

  • Weight: 430g 
  • Hole counts: 24, 28, 32
  • Height: 21mm
  • External Width: 24mm
  • Internal Width: 20mm
  • ERD: 601mm
  • Tubeless Compatibility: Yes
  • Colors: black
  • Ideal use: Lightweight climbing
  • Includes PHR washers

Inventory note: We stock a wide variety of DT Swiss rims, however our inventory fluctuates daily. We may need to order rims with an average lead time of 2-7 business days. Some rims take longer. If your order is time sensitive we encourage you to contact us for up to the minute product availability and shipping lead times. 

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