{"product_id":"bontrager","title":"BCR5 Ultra: Performance Kit for Bontrager Aeolus","description":"\u003ch1 data-path-to-node=\"3\"\u003e\u003cb data-path-to-node=\"3\" data-index-in-node=\"0\"\u003eBCR5 Ultra: Road Disc Performance Kit\u003c\/b\u003e\u003c\/h1\u003e\n\u003ch3 data-path-to-node=\"4\"\u003e\u003cb data-path-to-node=\"4\" data-index-in-node=\"0\"\u003eThe Gold Standard of Momentum.\u003c\/b\u003e\u003c\/h3\u003e\n\u003cp data-path-to-node=\"5\"\u003eMaximize your mechanical advantage with the\u003cspan\u003e \u003c\/span\u003e\u003cb data-path-to-node=\"5\" data-index-in-node=\"44\"\u003eBCR5 Ultra\u003c\/b\u003e. Specifically engineered for high-performance road disc wheel-sets, these aren't just bearings—they are a critical technical upgrade for racers who refuse to leave watts on the table.\u003c\/p\u003e\n\u003cp data-path-to-node=\"6\"\u003eDeveloped through years of experience on the racing circuit, the BCR5 Ultra system is designed to provide near-zero rolling resistance while maintaining the durability required for real-world pavement conditions.\u003c\/p\u003e\n\u003ch3 data-path-to-node=\"7\"\u003e\u003cb data-path-to-node=\"7\" data-index-in-node=\"0\"\u003eThe Technical Advantage\u003c\/b\u003e\u003c\/h3\u003e\n\u003cp data-path-to-node=\"8,0,0\"\u003e\u003cb data-path-to-node=\"8,0,0\" data-index-in-node=\"0\"\u003ePrecision Grade:\u003c\/b\u003e\u003cspan\u003e \u003c\/span\u003eCertified\u003cspan\u003e \u003c\/span\u003e\u003cb data-path-to-node=\"8,0,0\" data-index-in-node=\"27\"\u003eABEC 5\u003c\/b\u003e\u003cspan\u003e \u003c\/span\u003etolerances for ultra-low friction and                          maximum rotational consistency.\u003c\/p\u003e\n\u003cp data-path-to-node=\"8,0,0\"\u003e\u003cb data-path-to-node=\"8,1,0\" data-index-in-node=\"0\"\u003eMaterial Science:\u003c\/b\u003e\u003cspan\u003e \u003c\/span\u003eGrade 5\u003cspan\u003e \u003c\/span\u003e\u003cb data-path-to-node=\"8,1,0\" data-index-in-node=\"26\"\u003eSilicon Nitride (Si3N4)\u003c\/b\u003e\u003cspan\u003e \u003c\/span\u003eceramic balls—58% lighter and 40% stronger than high-grade steel.\u003c\/p\u003e\n\u003cp data-path-to-node=\"8,0,0\"\u003e\u003cb data-path-to-node=\"8,3,0\" data-index-in-node=\"0\"\u003eRoad-Specific Sealing:\u003c\/b\u003e\u003cspan\u003e \u003c\/span\u003eEquipped with non-contact, dual-lip seals designed to keep road grime out without adding mechanical drag.\u003c\/p\u003e\n\u003cp data-path-to-node=\"8,1,0\"\u003e\u003cb data-path-to-node=\"8,4,0\" data-index-in-node=\"0\"\u003eElite Lubrication:\u003c\/b\u003e\u003cspan\u003e \u003c\/span\u003ePre-lubricated with high-velocity Bala grease, optimized for the high-RPM demands of road racing.\u003c\/p\u003e\n\u003ch3 data-path-to-node=\"9\"\u003e\u003cb data-path-to-node=\"9\" data-index-in-node=\"0\"\u003eHub Compatibility\u003c\/b\u003e\u003c\/h3\u003e\n\u003cp data-path-to-node=\"10\"\u003eThis kit is optimized for premium road disc hubs, including:\u003c\/p\u003e\n\u003cp data-path-to-node=\"3,2,0\"\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cstrong\u003eAeolus RSL (37\/51\/62\/75)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-path-to-node=\"3,2,0\"\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cstrong\u003eAeolus Pro (37\/49V\/51)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-path-to-node=\"3,3,0\"\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cstrong\u003eAeolus Elite (35\/50)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-path-to-node=\"11,0,0\"\u003e\u003ci style=\"font-family: -apple-system, BlinkMacSystemFont, 'San Francisco', 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif; font-size: 0.875rem;\" data-path-to-node=\"11,3,0\" data-index-in-node=\"0\"\u003eFor specific compatibility questions, refer to our Rim Selection Guide.\u003c\/i\u003e\u003c\/p\u003e\n\u003ch3 data-path-to-node=\"12\"\u003e\u003cb data-path-to-node=\"12\" data-index-in-node=\"0\"\u003eWhat’s In The Box\u003c\/b\u003e\u003c\/h3\u003e\n\u003cp data-path-to-node=\"13,0,0\"\u003eBCR5 Ultra Ceramic Bearings (Full Hub \u0026amp; Freehub Set)\u003c\/p\u003e\n\u003cp data-path-to-node=\"13,1,0\"\u003e\u003cb data-path-to-node=\"13,1,0\" data-index-in-node=\"0\"\u003eBala Ceramica Founder’s Card \u003c\/b\u003e\u003c\/p\u003e\n\u003cp data-path-to-node=\"13,2,0\"\u003e\u003cb data-path-to-node=\"13,2,0\" data-index-in-node=\"0\"\u003eTechnical Spec Sheet\u003c\/b\u003e\u003cspan\u003e \u003c\/span\u003ewith validated micron tolerances\u003c\/p\u003e","brand":"bala-ceramica.com","offers":[{"title":"Hub Kit","offer_id":50967540924649,"sku":null,"price":399.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0804\/9262\/6153\/files\/Bontrager.jpg?v=1777915981","url":"https:\/\/bala-ceramica.com\/products\/bontrager","provider":"BALA CERAMICA","version":"1.0","type":"link"}