DT Swiss RR 521 DB 700c 28 Hole Disc Road Rim - Black
SKU code: APO-DTR1026
In Stock
The DT Swiss RR 521 DB is a 32mm semi-aero aluminium road rim that adds a touch of speed and stiffness to disc-brake builds without the price of carbon. Rated to 130kg system weight, it is a robust, versatile choice for fast road and endurance wheels.
Highlights
- 32mm semi-aero profile for added stiffness and a faster feel
- Aluminium build rated to 130kg system weight
- 20mm internal width suits modern road tyres
- Hooked tubeless-ready (TC) bed for a secure, low-pressure setup
- 28 hole drilling for a balance of weight and durability
Construction
The RR 521 uses a welded aluminium rim joint for a clean, true rim bed and the non-eyelet DT Swiss PHR (Pro Head Reinforcement) washer system, which spreads spoke load across the rim wall. The deeper 32mm, 24mm-wide profile adds lateral stiffness over shallower road rims.
Compatibility & fit
This rim is disc-brake specific (no braking surface) and built for 700c / 622 wheels. It is hooked tubeless-ready and uses a Presta valve. Pair it with 28-hole DT Swiss or compatible disc hubs and a tubeless-rated road tyre. DT Swiss Squorx Pro Lock nipples and PHR washers are included.
DT Swiss covers this rim with a 24-month warranty against material and manufacturing defects from the date of purchase. Normal wear items, including tubeless tape, are not covered. The DT Swiss crash-replacement (Fair Share) programme applies to carbon rims only and does not apply to this aluminium rim.
For any warranty support, please return the item to Tune Cycles and our team will handle the claim on your behalf.
- Aluminium semi-aero road rim, disc-brake specific
- 700c / 622 diameter
- 20mm internal / 24mm outer width
- 32mm rim depth (semi-aero)
- 28 hole
- Hooked tubeless-ready (TC) bed
- Welded rim joint, non-eyelet PHR washer system
- Presta valve, claimed weight 520g
- ASTM category 2, max system weight 130kg, e-bike approved (max 25km/h / 250W class)
| Brand | DT Swiss |
| Model | RR 521 DB |
| Discipline | Road / Endurance |
| Diameter | 700c (622) |
| Internal width | 20mm |
| Outer width | 24mm |
| Rim depth | 32mm |
| Hole count | 28 |
| Brake type | Disc (Db) |
| Tubeless | Yes, hooked tubeless-ready (TC) |
| Valve | Presta |
| Rim joint | Welded |
| ASTM category | 2 |
| Max system weight | 130kg |
| E-bike | Approved (max 25km/h / 250W class) |
| Weight | 520g |
| SKU | APO-DTR1026 |
| Barcode # | 7630033894104 |
| Brand | DT Swiss |
