{"product_id":"sunlite-sl-55-bb-73mm-square-taper-jis-bottom-bracket-btbk0324-bicycle-bottom-brackets","title":"Sunlite SL-55 Square Taper BSA Bottom Bracket 73x127mm Sealed Bearings, Chromoly Spindle, Alloy Shell \u0026 Cups for Durable Bike Performance","description":"\u003cdiv id=\"seqbpdescription-1\"\u003e\u003cp\u003eUpgrade your bike's performance with the Sunlite SL-55 Square Taper JIS 73x127 Spindle BSA Bottom Bracket, engineered for durability, smooth operation, and reliable power transfer. Designed with high-quality materials and innovative engineering, this sealed bearing bottom bracket is perfect for road bikes, mountain bikes, and commuter cycles.\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\u003eConstructed with an durable alloy shell and alloy cups, the Sunlite SL-55 provides a lightweight yet robust framework that resists corrosion and wear. The chromium-molybdenum (chromoly) spindle ensures high tensile strength, allowing for efficient pedaling and power transfer under 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\u003eFeaturing sealed bearings, this bottom bracket effectively prevents dirt, water, and debris from entering, minimizing maintenance requirements and extending the lifespan of your drivetrain components. The precise JIS (Japanese Industry Standard) threading ensures compatibility with most standard BSA (English threaded) frames, delivering a secure, wobble-free fit.\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\u003eThe combination of alloy cups and shell with sealed bearings makes for a smooth, reliable, and quiet ride. The Sunlite SL-55 embodies engineering excellence ideal for everyday cyclists and serious riders seeking consistent performance and durability.\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 for versatile use, this bottom bracket is compatible with 73x127mm spindle sizes, making it suitable for a broad range of bicycle styles-including road, mountain, and hybrid bikes. Its sleek, corrosion-resistant finish complements any bike build, while its performance-oriented design enhances overall cycling efficiency.\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\u003eSealed bearing technology sets the Sunlite SL-55 apart from standard bottom brackets, providing enhanced protection against the elements and contaminants. This ensures a longer service life, reduced maintenance, and trustworthy power transfer ride after ride.\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-12\"\u003e\u003cp\u003eUpgrade your bicycle's bottom bracket with the Sunlite SL-55 Square Taper JIS 73x127 Spindle BSA Bottom Bracket - the perfect blend of durability, performance, and reliability for cycling enthusiasts and everyday riders alike.\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpfeatures\"\u003e\u003cul\u003e\n\u003cli\u003eHigh-performance BSA bottom bracket featuring sealed bearings for enhanced durability and reduced maintenance, ideal for demanding cycling conditions. \u003c\/li\u003e\n\u003cli\u003eConstructed with premium alloy shells and cups, providing optimal corrosion resistance and lightweight strength for long-lasting reliability. \u003c\/li\u003e\n\u003cli\u003eEquipped with a precision-machined chromoly spindle, offering improved stiffness and power transfer for efficient pedaling and responsive ride feel. \u003c\/li\u003e\n\u003cli\u003eDesigned for square taper JIS interfaces, ensuring universal compatibility with a wide range of road and mountain bike cranksets. \u003c\/li\u003e\n\u003cli\u003eInnovative sealed bearing technology minimizes dirt ingress and water intrusion, extending the lifespan of your bottom bracket and maintaining smooth operation over time.\u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/div\u003e","brand":"Sunlite","offers":[{"title":"Default Title","offer_id":42207494733891,"sku":"BTBK0324","price":36.59,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1608\/6187\/files\/17153.jpg?v=1773443048","url":"https:\/\/365cycles.com\/products\/sunlite-sl-55-bb-73mm-square-taper-jis-bottom-bracket-btbk0324-bicycle-bottom-brackets","provider":"365 Cycles","version":"1.0","type":"link"}