{"product_id":"ceramicspeed-single-bearing-619-9-699-for-cycling-performance-efficiency","title":"CeramicSpeed Single Bearing 619\/9 (699) for Cycling Performance \u0026 Efficiency","description":"\u003cp\u003eThe CeramicSpeed Single Bearing 619\/9 (699) is a precision-crafted component designed to elevate your cycling performance. Hand-built in Denmark, this bearing features grade 3 Silicon Nitride ceramic balls that are meticulously matched within microns to hardened steel raceways with ultra-smooth polished grooves. This precise engineering ensures minimal friction, resulting in smoother rides and more efficient power transfer.\u003c\/p\u003e\n\n\u003cp\u003eEquipped with a reinforced polyamide cage and optimized with low viscosity CeramicSpeed Blue Grease, this bearing offers enhanced durability and longevity. Its non-contact seals protect against dirt and moisture, making it suitable for various cycling disciplines including Road, TT, Triathlon, Track, Cross, and MTB. Each bearing undergoes four manual quality checks during assembly to guarantee perfect matching and superior performance.\u003c\/p\u003e\n\n\u003cp\u003eCompared to standard steel bearings, CeramicSpeed Balls are 400% smoother, 128% harder, and 58% lighter. They outperform other ceramic balls by being 15% harder, handling 99% higher loads, and delivering 100% smoother operation. With dimensions of 9 mm inner diameter, 20 mm outer diameter, and 6 mm width, this bearing is a reliable upgrade for your wheels and hubs, ensuring consistent, high-quality results.\u003c\/p\u003e\n\n\u003ch3\u003eWhat It’s Good For\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eReducing friction to improve power transfer efficiency\u003c\/li\u003e\n  \u003cli\u003eEnhancing bearing life with high-quality materials and lubrication\u003c\/li\u003e\n  \u003cli\u003eProviding smooth performance across multiple cycling disciplines\u003c\/li\u003e\n  \u003cli\u003eResisting dirt and moisture with durable non-contact seals\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat It’s NOT Good For\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eApplications outside of cycling or incompatible hub systems\u003c\/li\u003e\n  \u003cli\u003eUsers seeking bearings without ceramic ball technology\u003c\/li\u003e\n  \u003cli\u003eSituations requiring sealed bearings with contact seals for extreme conditions\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eCan this bearing be used for mountain biking?\u003c\/strong\u003e\u003cbr\u003eYes, it is designed to perform well in MTB as well as road, TT, triathlon, track, and cross cycling disciplines.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow does the CeramicSpeed Blue Grease affect performance?\u003c\/strong\u003e\u003cbr\u003eThe low viscosity grease minimizes friction and enhances bearing life by reducing wear and tear during use.\u003c\/p\u003e","brand":"CeramicSpeed","offers":[{"title":"Default Title","offer_id":45965248790703,"sku":"101258","price":79.99,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0654\/2003\/4223\/files\/101258.jpg?v=1768532741","url":"https:\/\/www.swinnertoncycles.co.uk\/products\/ceramicspeed-single-bearing-619-9-699-for-cycling-performance-efficiency","provider":"Swinnerton Cycles","version":"1.0","type":"link"}