{"product_id":"mavic-xc821-disc-brake-27-5-mtb-rim-ust-tubeless-ready-21mm-width","title":"Mavic XC821 Disc Brake 27.5\" MTB Rim UST Tubeless Ready 21mm Width","description":"\u003cp\u003eThe Mavic XC821 Disc 27.5\" Rim is designed to elevate your mountain biking experience with its perfect balance of lightweight construction and wider profile. Crafted from durable S6000 Aluminium, this rim ensures fast accelerations and superior grip across diverse terrains. Its hookless, asymmetrical design enhances tyre performance, offering increased comfort and reliable puncture protection for longer rides.\u003c\/p\u003e\n\n\u003cp\u003eEquipped with Mavic’s UST Tubeless technology, the rim significantly improves traction, control, and ride comfort while minimizing the risk of flats and reducing rotational inertia. The SUP welding process guarantees a strong, smooth joint by arc welding and milling the welded seam, ensuring durability without compromising performance.\u003c\/p\u003e\n\n\u003cp\u003eWith traditional eyelet drilling and compatibility with tubeless tyres ranging from 25 to 64mm, the XC821 fits a wide range of setups. Its 21mm internal width and 20mm height profile provide a stable platform for aggressive riding, while the 6.5mm valve hole supports easy installation. Whether upgrading your current wheels or building a new set, the XC821 rim offers reliability and performance for every trail enthusiast.\u003c\/p\u003e\n\n\u003ch3\u003eWhat It’s Good For\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eProviding exceptional grip and acceleration on various mountain biking terrains\u003c\/li\u003e\n  \u003cli\u003eEnhancing ride comfort and puncture protection with an optimized tyre profile\u003c\/li\u003e\n  \u003cli\u003eSupporting tubeless tyre setups for improved traction and fewer flats\u003c\/li\u003e\n  \u003cli\u003eOffering a strong, smooth rim joint through advanced SUP welding technology\u003c\/li\u003e\n  \u003cli\u003eCompatible with a wide range of tyre widths, accommodating versatile riding styles\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat It’s NOT Good For\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eUse with rim brakes, as it is designed exclusively for disc brake systems\u003c\/li\u003e\n  \u003cli\u003eRiders looking for ultra-narrow rims, since it features a wider 21mm internal width\u003c\/li\u003e\n  \u003cli\u003eThose requiring integrated tubeless tape, as it is not included with the rim\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eIs the Mavic XC821 rim compatible with tubeless tyres?\u003c\/strong\u003e\u003cbr\u003eYes, the rim features UST Tubeless Ready technology, allowing you to run tubeless tyres for better traction and fewer flats.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan I use this rim with rim brakes?\u003c\/strong\u003e\u003cbr\u003eNo, the XC821 rim is designed specifically for disc brake systems and is not suitable for rim brake setups.\u003c\/p\u003e","brand":"Mavic","offers":[{"title":"28h \/ Black","offer_id":45506744320175,"sku":"MVR23601","price":56.85,"currency_code":"GBP","in_stock":true},{"title":"32h \/ Black","offer_id":45506744352943,"sku":"MVR23602","price":56.85,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0654\/2003\/4223\/files\/1738079445-99053400.jpg?v=1768526240","url":"https:\/\/www.swinnertoncycles.co.uk\/products\/mavic-xc821-disc-brake-27-5-mtb-rim-ust-tubeless-ready-21mm-width","provider":"Swinnerton Cycles","version":"1.0","type":"link"}