{"product_id":"full-speed-ahead-acb-mr127-headset-bearing-bb4502","title":"FSA ACB Micro Bearing 36x45mm Sealed Cartridge with Blue Seal - Durable 1.5\" Performance \u0026 Engineering for Cycling Maintenance","description":"\u003cdiv id=\"seqbpdescription-1\"\u003e\u003cp\u003eUpgrade your bicycle's performance with the FSA (Full Speed Ahead) ACB Bearing Micro 36 x 45 - a durable, precision-engineered component designed for reliable cycling excellence. Developed with advanced materials and engineered for optimized performance, this high-quality cartridge bearing is ideal for road, mountain, and gravel bike applications.\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-2\"\u003e\u003cp\u003eMaterials \u0026amp; Construction:\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-3\"\u003e\u003cp\u003eCrafted with premium-quality steel balls and a sealed blue rubber seal, the FSA ACB Bearing Micro ensures maximum durability and resistance against dirt, water, and contaminants. The sealed cartridge design provides enhanced protection, reducing maintenance needs and extending bearing lifespan, making it perfect for demanding riding conditions.\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-4\"\u003e\u003cp\u003ePerformance \u0026amp; Engineering:\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-5\"\u003e\u003cp\u003eWith precision 36x45-degree angled ball bearings, this model offers smooth rotation, reduced friction, and superior load distribution. The 51.9mm outer diameter, combined with an 40mm inner diameter bore, guarantees a secure fit and optimal performance in 1.5\" headsets or bottom brackets. Its engineered design ensures consistent performance, even under high stress, making it a trusted choice for professional cyclists and enthusiasts alike.\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-6\"\u003e\u003cp\u003eComponents \u0026amp; Technology:\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-7\"\u003e\u003cp\u003eFeaturing a sealed cartridge bearing system, the ACB MR127 combines robust engineering with ease of installation. The sealed design maintains lubrication and keeps contaminants out, leading to longer service intervals and reliable operation in diverse cycling environments. Built to meet the demanding standards of modern bicycle components, it offers both dependability and efficiency.\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-8\"\u003e\u003cp\u003eStyle \u0026amp; Use Case:\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-9\"\u003e\u003cp\u003eDesigned to blend seamlessly with high-performance cycling setups, this bearing is ideal for upgrading or maintaining headsets, bottom brackets, or other critical bike components. Its compact size and durable construction make it suitable for various bike types, whether you're tackling rugged trails, fast-paced road rides, or challenging gravel adventures.\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-10\"\u003e\u003cp\u003eInnovative Features:\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-11\"\u003e\u003cp\u003eThe FSA ACB Bearing Micro features a sealed blue rubber protective cover, a hallmark of quality that enhances longevity and reduces maintenance. Its precise 36x45-degree angle design maximizes load capacity and minimizes play, ensuring a smooth, responsive ride every time.\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-12\"\u003e\u003cp\u003eKey Specifications:\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-13\"\u003e\u003cp\u003e- Bearing Type: Cartridge, Sealed\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-14\"\u003e\u003cp\u003e- Bearing Size: 36 x 45 degrees, 36\/45 Ball Size\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-15\"\u003e\u003cp\u003e- Outer Diameter (O.D.): 51.9mm\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-16\"\u003e\u003cp\u003e- Inner Diameter (I.D.): 40mm\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-17\"\u003e\u003cp\u003e- Fitment: 1.5\" (for headsets, bottom brackets, similar applications)\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-18\"\u003e\u003cp\u003e- Model: MR127\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-19\"\u003e\u003cp\u003e- Packaged individually for versatile upgrades and replacements\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-20\"\u003e\u003cp\u003eOptimize your cycling experience with the FSA ACB Bearing Micro 36 x 45 - the reliable choice for precision, durability, and performance.\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpfeatures\"\u003e\u003cul\u003e\n\u003cli\u003eHigh-precision cartridge bearing designed with FSA's durable ACB (All-Conditions Bearing) technology for reliable performance in demanding cycling applications. \u003c\/li\u003e\n\u003cli\u003eConstructed with a resilient blue seal, these micro 36x45 bearings offer superior protection against dirt, water, and debris, extending bearing lifespan and maintaining smooth operation. \u003c\/li\u003e\n\u003cli\u003eEngineered with a 36x45 degree bearing angle and sealed cartridge design, ensuring optimal load distribution for enhanced stability and reduced friction under high-performance riding conditions. \u003c\/li\u003e\n\u003cli\u003eCompatible with 1.5-inch spindle sizes, these bearings are ideal for a wide range of bike components such as hubs, cranks, and bottom brackets, providing versatile installation options. \u003c\/li\u003e\n\u003cli\u003eFeaturing advanced engineering with high-quality materials and sealed ball technology, FSA ACB Micro Bearings deliver consistent, long-lasting performance for competitive cycling and everyday riding.\u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/div\u003e","brand":"Full Speed Ahead","offers":[{"title":"Default Title","offer_id":42356461043779,"sku":"BB4502","price":22.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1608\/6187\/files\/BB4502.jpg?v=1779312225","url":"https:\/\/365cycles.com\/products\/full-speed-ahead-acb-mr127-headset-bearing-bb4502","provider":"365 Cycles","version":"1.0","type":"link"}