DT Swiss RR 421 Rim
Best lightweight rim for performance road and gravel builds.
This is the ideal foundation for riders who prioritize structural integrity over pure weight savings. By using a clever load-balancing system to distribute stress, it offers a ride that feels remarkably solid and reliable, even if it isn't the lightest option on the market.
$142.90
at
Sierra Cyclesmith
More R Series options
DT Swiss RR 481 Rim
$157.90
DT Swiss RR 481 DB Rim
$149.00
DT Swiss RR 511 Rim
$132.00
DT Swiss RR 511 Rim
$157.90
DT Swiss RR 521 Rims
$132.00
DT Swiss R 500 DB
$71.02
DT Swiss R 460 DB
$71.02
DT Swiss RR 411 RB Asymmetric
$142.90
DT Swiss RR 421 DB Asymmetric
$108.90
DT Swiss RR 511
$98.60
DT Swiss RR 521 DB
$113.90
DT Swiss R 470
$63.00
DT Swiss R 470
$59.90
DT Swiss RR 411 Rim
$142.90
DT Swiss R500
$74.90
DT Swiss RR 481 DB
$149.47
DT Swiss R 460 Rim
$74.90
DT Swiss RR 411 Rim
$157.90
DT Swiss RR 511 Rim
$157.90
DT Swiss R 470 Rim
$74.90
DT Swiss A 510
$78.90
DT Swiss R 500 Rim
$63.00
DT Swiss RR 585 Road Rim
$69.99
DT Swiss R 470
$74.90
DT Swiss R 470 Rim
$74.90
DT Swiss RR 421 Rim
$157.90
DT Swiss RR 585 Rim
$87.99
DT Swiss RR 521 Rim
$127.90
DT Swiss R 500 Rim
$74.90
DT Swiss A 510 Rim
$78.90
DT Swiss A 510 Rim
$78.90
DT Swiss RR 411 Rim
$157.90
DT Swiss RR 585 Rim
$69.99
DT Swiss R 470 Rim
$71.02
DT Swiss A 510 Rim
$78.90
Who it's for
- High-mileage riders seeking a reliable and balanced wheelset
- Cyclists wanting lower rolling resistance and fewer flat tires
- Climbers looking for a snappy and responsive uphill experience
Who should skip it
- Gravel riders preferring tires wider than thirty-two millimeters
- Budget-conscious builders looking for the most affordable replacement option
- Inexperienced home mechanics building their first set of wheels
Performance breakdown
Structural Integrity
Welded joint construction provides exceptional stiffness and long-term durability.
Tubeless Compatibility
Optimized bead seat design makes tire mounting and sealing straightforward.
Weight Efficiency
Lightweight aluminum profile balances climbing agility with robust road performance.
Build Precision
PHR system ensures spoke tension is distributed evenly for reliable wheels.
Surface Durability
Specialized anodizing resists scratches and corrosion from harsh road conditions.
Handling Responsiveness
20mm internal width provides a stable platform for modern tire profiles.
Key Specs
Weight
430 grams
Internal Width
20 mm
External Width
24 mm
Rim Depth
21 mm
Effective Rim Diameter (ERD)
601 mm
Material
Aluminum
Brake Compatibility
Disc brake
Tubeless Ready
Yes
Spoke Count
28
Finish
Anodized black
Know before you buy
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