{"product_id":"dt-swiss-rr-421-asymmetric-disc-brake-rim-presta-drilled-black-for-road-bikes","title":"DT Swiss RR 421 Asymmetric Disc Brake Rim Presta-Drilled Black for Road Bikes","description":"\u003cp\u003eThe DT Swiss RR 421 Asymmetric Disc Brake rim is engineered for cyclists seeking the perfect blend of lightweight performance and durability. With an impressive internal width of 20 mm, it accommodates wider tires that enhance comfort and grip without sacrificing speed. Weighing only 430 grams, this rim is an ideal choice for endurance road disc brake bikes, offering a responsive and reliable ride.\u003c\/p\u003e\n\n\u003cp\u003eIts asymmetrical profile is designed to offset the natural imbalance caused by disc brake hubs, resulting in improved spoke tension and wheel strength. The thoughtful design ensures optimal spoke angles by positioning the offset towards the drive side on the front wheel and away from the drive side on the rear. This meticulous engineering contributes to a stiffer, more durable wheelset that performs consistently under various conditions.\u003c\/p\u003e\n\n\u003cp\u003eVersatility is another key feature of the RR 421, compatible with both standard clincher and road tubeless tires when paired with DT Swiss tubeless tape and valves. The rim’s robust construction incorporates DT Swiss’s Strength Boost Welding Technology, delivering a seamless, durable joint. Included with the rim are Squorx ProHead nipples and PHR washers, which align perfectly with spokes to boost stiffness and longevity without adding weight. The black coating undergoes a unique process, ensuring a tough and long-lasting finish that withstands the rigors of road cycling.\u003c\/p\u003e\n\n\u003ch3\u003eWhat It’s Good For\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eRunning wider tires for enhanced comfort and improved road grip\u003c\/li\u003e\n  \u003cli\u003eBuilding a strong, stiff, and durable wheelset optimized for disc brake hubs\u003c\/li\u003e\n  \u003cli\u003eCompatibility with both standard clincher and tubeless road tires\u003c\/li\u003e\n  \u003cli\u003eAchieving a lightweight setup with a rim weight of just 430 grams\u003c\/li\u003e\n  \u003cli\u003eEndurance road cycling where reliability and performance are crucial\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat It’s NOT Good For\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eHeavy-duty use requiring rims designed for higher system weight\u003c\/li\u003e\n  \u003cli\u003eApplications outside of road cycling or disc brake setups\u003c\/li\u003e\n  \u003cli\u003eRiders needing rim widths beyond 20 mm for specialized tires\u003c\/li\u003e\n  \u003cli\u003eNon-Presta valve systems without appropriate adapters\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eCan I use these rims with tubeless tires?\u003c\/strong\u003e\u003cbr\u003eYes, the RR 421 rims are compatible with road tubeless tires when used with DT Swiss tubeless tape and valves, offering a seamless and reliable tubeless setup.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat makes the rim asymmetrical?\u003c\/strong\u003e\u003cbr\u003eThe asymmetrical profile compensates for the offset caused by disc brake hubs, balancing spoke tension and increasing wheel strength and stiffness.\u003c\/p\u003e","brand":"DT Swiss","offers":[{"title":"24h \/ Black","offer_id":45506753429679,"sku":"RRR421DBBK24","price":84.86,"currency_code":"GBP","in_stock":true},{"title":"28h \/ Black","offer_id":45506753462447,"sku":"RRR421DBBK28","price":84.86,"currency_code":"GBP","in_stock":true},{"title":"32h \/ Black","offer_id":45506753495215,"sku":"RRR421DBBK32","price":84.86,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0654\/2003\/4223\/files\/1519836732-19410100.jpg?v=1768523817","url":"https:\/\/www.swinnertoncycles.co.uk\/products\/dt-swiss-rr-421-asymmetric-disc-brake-rim-presta-drilled-black-for-road-bikes","provider":"Swinnerton Cycles","version":"1.0","type":"link"}