RR 421
The reliable rim with an ideal price to performance ratio!
- MSRP US$ from $ 142
- Net weight from 430 g
- from € 89
- from CHF 89
Product details
A state-of-the-art high quality aluminum rim, making for the perfect upgrade on any road bike. That is what the new RR 421 rim is all about. The welded rim supports wider tires and still offers a super-lightweight wheel build up.
- Material ALUMINIUM
Model finder
Just a few clicks to find your model. Please use the filter below.
RR 421 700C 21 mm DB VI
RDRR42CDPW24SA5224- Net weight 430 g
- recommended System weight max. 120 kg
- ASTM classification 2
- Approved for e-bikes Yes (max. 32Km/h or max. 250W)
- Material ALUMINIUM
- Rim joint Welded
- Tire interface Hooked / Crotchet tubeless TC
- Brake Interface Disc
- Rim Diameter 29" / 700C
- Reference diameter ERD 601 mm
- Inner Width 20 mm
- Outer width 24 mm
- Rim Height 21 mm
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Cross-section
- Number of holes 24
- Spoke bore rim Non eyelet PHR
- Valve hole Presta
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Inclusive
DT Pro Lock Squorx alu silver
Washer PHR
RR 421 700C 21 mm DB VI
RDRR42CDPW28SA5225- Net weight 430 g
- recommended System weight max. 120 kg
- ASTM classification 2
- Approved for e-bikes Yes (max. 32Km/h or max. 250W)
- Material ALUMINIUM
- Rim joint Welded
- Tire interface Hooked / Crotchet tubeless TC
- Brake Interface Disc
- Rim Diameter 29" / 700C
- Reference diameter ERD 601 mm
- Inner Width 20 mm
- Outer width 24 mm
- Rim Height 21 mm
-
Cross-section
- Number of holes 28
- Spoke bore rim Non eyelet PHR
- Valve hole Presta
-
Inclusive
DT Pro Lock Squorx alu silver
Washer PHR
RR 421 700C 21 mm DB VI
RDRR42CDPW32SA5226- Net weight 430 g
- recommended System weight max. 120 kg
- ASTM classification 2
- Approved for e-bikes Yes (max. 32Km/h or max. 250W)
- Material ALUMINIUM
- Rim joint Welded
- Tire interface Hooked / Crotchet tubeless TC
- Brake Interface Disc
- Rim Diameter 29" / 700C
- Reference diameter ERD 601 mm
- Inner Width 20 mm
- Outer width 24 mm
- Rim Height 21 mm
-
Cross-section
- Number of holes 32
- Spoke bore rim Non eyelet PHR
- Valve hole Presta
-
Inclusive
DT Pro Lock Squorx alu silver
Washer PHR
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Looking for conversion options, spare parts, manuals or how-to videos? Visit our product support.
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Find help and answers for frequently asked questions here.
According to your selection RR 421 we found 3 models. Please use the model finder above to narrow down the models.
Select the model for which you need product support.
Find help and answers for frequently asked questions here.
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DT Swiss sells its products exclusively via official dealers, some of which also have online shops. Please contact your dealer. Or contact the distributor for your country – please use the contact form and select your country first, followed by "Product availability" as the subject.
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Compare the products on our website, where you can find our entire range and all technical specifications. Use the Wheel Finder to find the right wheel in just a few clicks.
Alternatively, contact a dealer – they know all about DT Swiss products and technologies and can advise you.
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In cycling, rim height significantly impacts the aerodynamics, maneuverability and weight of the wheel. Basically, the higher the rim, the greater the aerodynamic advantage. The lower the rim, the more agile and maneuverable the handling.
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Caution when choosing brake pads for wheels with rim brakes!
- Only "SwissStop Black Prince" brake pads may be used on carbon rims.
- Only "SwissStop BXP Blue" brake pads may be used on OXIC rims.
The use of incorrect brake pads can cause the rim to fail. DT Swiss takes no responsibility in this case. Please also note that brake pads which were previously used on aluminum rims must not be used on carbon rims. The aluminum abrasion in the brake pad can destroy the carbon. For further information about your wheel, please refer to the user manual.
If you notice these damage patterns on your wheel, contact a service center.
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Tires with different widths and profiles are used depending on the surface. There are different recommendations for inner rim width depending on the choice of tire width for the respective road cycling purpose.