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Free UK Shipping Over £50 & Easy Returns





Free UK standard shipping on orders over £50
The DT Swiss RR 521 DB SBWT Presta-Drilled Disc Brake Black rim is engineered to perfectly complement modern endurance road disc brake bikes. With an internal width of 20 mm, it is specifically designed to accommodate wider 28-35c road tyres, providing enhanced comfort and improved grip on various road surfaces. The 32 mm deep semi-aero profile combines stiffness and strength, making it especially suitable for heavier riders or those who prefer to carry extra gear on their rides.
Thanks to DT Swiss's Strength Boost Welding Technology, the rim features a flawlessly welded join that ensures long-lasting durability and reliability under demanding conditions. The inclusion of Squorx ProHead nipples and PHR washers not only simplifies the build process but also enhances spoke alignment and wheel stiffness without adding extra weight. This rim supports both standard clinchers and tubeless setups, offering versatility for different riding preferences.
Finished with a unique black coating procedure, the RR 521 boasts a tough and resilient surface that resists wear and tear. Its outer width of 24 mm, combined with an ERD of 581 mm, maximizes tyre compatibility and wheel performance. With a recommended maximum system weight of 130 KG, this rim delivers a perfect balance between strength and endurance for serious riders.
Can I use tubeless tyres with this rim?
Yes, the RR 521 rim supports tubeless tyre setups when paired with DT Swiss tubeless tape and valves.
Is this rim suitable for heavier riders?
Absolutely. Its 32 mm deep semi-aero design and reinforced construction make it ideal for riders who carry extra weight or gear.
Stock Status Instock - Instore - Item Usually shipped or available for shop collection, within 48 hours (Mon-Fri)
Instock - Supplier Warehouse - Item is held in Suppliers Warehouse, Depending on the the supplier transfer time can vary from 24 Hours to 14 Days for item held in European warehouse.
(over festive periods some suppliers shut from 24th Dec-2nd Jan so orders can be delayed through this period.)
Brands held in European website include Trek, Bontrager, Electra, Wahoo, Rapha. For up-to-date transfer times please call customer services on +44 (0)1782 768622
Most out products are shipped by FedEx, providing unprecedented reliability and speed. Lightweight Spares below £25.00 value have a Royal Mail postage option, which is sent via Tracked 48 service. - £2.99
Shipping on all Domestic Orders over £50.00 (excluding bikes and home trainers) for delivery within the UK is completely FREE!
Bike and Home Trainers and oversize Goods £15.00 - FedEx
White Glove Bike Delivery - our white glove option has your bike personally delivered to you by a fully trained Mechanic and Bike fitter - £99.99
(Certain bikes will only have this option such as Cargo Bikes)
To Qualify for FREE Shipping:
In some cases, we may ship items out with another courier, depending on the status and availability of items ordered. (Customers will not be charged more and will be refunded any unused postage cost) If part of an order is cancelled and the total drops below the £50.00 free postage, a postage charge may be taken.
Delivery costs will be clearly stated on the checkout page, though you will need to register (to provide your delivery address) in order to see the delivery costs.
If you have any questions about delivery charges, times or none delivery please do not hesitate to get in touch by email:store@swinnertoncycles.co.uk or by telephone on +44 (0)1782 768622. Handling is normally 48 hours, but at busy periods this may be extended but we will endeavor to process your order within 5 working days. Please bear in mind in some cases orders can take longer to process, please contact us for more details.
You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.



