{"product_id":"dt-swiss-xr-391-sbwt-27-5-29-disc-specific-presta-drilled-tubeless-optimized-rim-black","title":"DT Swiss XR 391 SBWT 27.5\/29\" Disc-Specific Presta-Drilled Tubeless Optimized Rim Black","description":"\u003cp\u003eThe DT Swiss XR 391 SBWT disc-specific rim is engineered for serious cross-country racers seeking the perfect balance of lightweight performance and durability. Featuring a generous 25 mm internal diameter, this rim optimizes tire fitment to enhance grip, comfort, and speed. Extensive testing with elite athletes like Nino Schurter and Florian Vogel has proven that pairing wider XC race tires with an ideal rim width significantly reduces rolling resistance, making every pedal stroke more efficient.\u003c\/p\u003e\n\n\u003cp\u003eDesigned with tubeless optimization, the XR 391 ensures quick and hassle-free tire installation while maintaining compatibility with standard inner tubes. Its Strength Boost Welding Technology delivers a flawless, durable join that stands up to rigorous riding conditions. The inclusion of PHR washers and convex Squorx nipples increases spoke alignment, boosting overall stiffness and durability without adding weight, elevating your ride quality.\u003c\/p\u003e\n\n\u003cp\u003eDespite its width rivaling some downhill rims, the XR 391 remains race-focused, supporting a maximum system weight of 110 KG. Available in both 27.5 and 29 inch sizes, this disc brake specific rim combines innovative design with competitive pricing, making wide XC race rims more accessible than ever.\u003c\/p\u003e\n\n\u003ch3\u003eWhat It’s Good For\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eOptimizing tire grip and comfort with a wide 25 mm internal rim diameter\u003c\/li\u003e\n  \u003cli\u003eReducing rolling resistance through precise rim and tire matching\u003c\/li\u003e\n  \u003cli\u003eQuick, reliable tubeless tire installation and setup\u003c\/li\u003e\n  \u003cli\u003eEnhancing rim strength and durability with advanced welding technology\u003c\/li\u003e\n  \u003cli\u003eIncreasing spoke stiffness and alignment for improved wheel performance\u003c\/li\u003e\n  \u003cli\u003eProviding a lightweight yet robust rim for competitive XC racing\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat It’s NOT Good For\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eRiders exceeding the maximum suggested system weight of 110 KG\u003c\/li\u003e\n  \u003cli\u003eDownhill or aggressive trail riding requiring heavier duty rims\u003c\/li\u003e\n  \u003cli\u003eUse with rim brake setups, as it is disc brake specific\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eIs this rim compatible with tubeless tires?\u003c\/strong\u003e\u003cbr\u003eYes, the rim bed is tubeless optimized for fast installation and reliable tubeless setups, though it can also be used with standard inner tubes.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat wheel sizes are available for the XR 391?\u003c\/strong\u003e\u003cbr\u003eThe rim is available in 27.5 inch and 29 inch versions, both designed specifically for disc brake systems.\u003c\/p\u003e","brand":"DT Swiss","offers":[{"title":"29er \/ Black \/ 28h","offer_id":45793413464239,"sku":"RXR39128BK29","price":94.29,"currency_code":"GBP","in_stock":true},{"title":"29er \/ Black \/ 32h","offer_id":45793413497007,"sku":"RXR39132BK29","price":94.29,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0654\/2003\/4223\/files\/rxr39129.jpg?v=1768528213","url":"https:\/\/www.swinnertoncycles.co.uk\/products\/dt-swiss-xr-391-sbwt-27-5-29-disc-specific-presta-drilled-tubeless-optimized-rim-black","provider":"Swinnerton Cycles","version":"1.0","type":"link"}