DT Swiss RR 521 DB SBWT Disc Brake Rim is crafted for those who prefer wider 28-35c road tyres. With an internal width of 20 mm, it pairs perfectly with modern endurance road disc brake bikes. This rim is part of the Endurance Road range and is known for its strength and stiffness, thanks to its 32 mm deep semi-aero design. It's a great choice for heavier cyclists or those planning to carry extra weight. DT Swiss RR 521 DB SBWT Disc Brake Rim can be used with both standard clinchers and road tubeless tyres. To set up tubeless, use DT Swiss tubeless tape and valves. The rim comes with DT Swiss Squorx ProHead nipples and PHR washers, ensuring a complete and reliable build. Key Features Strength Boost Welding Technology for a strong, durable join PHR washers and convex Squorx nipples align with spokes for increased stiffness Durable black coating for a long-lasting finish Maximum system weight: 130 KG Presta drilling Outer width: 24 mm, Inner Width: 20 mm, Height: 32 mm ERD: 581 mm with PHR Washers Max spoke tension: 1200 N Weight: 520 grams For those seeking a lighter option, consider the RR 421 DB's, which also offer a 20 mm width.