{"product_id":"sunlite-sl-55-bb-73mm-square-taper-jis-bottom-bracket-btbk0321-bicycle-bottom-brackets","title":"Sunlite SL-55 Square Taper JIS Bottom Bracket 73x113.5mm, Sealed Bearings, Alloy Shell \u0026 Cups, Chromoly Spindle - Durable Cycling Component","description":"\u003cdiv id=\"seqbpdescription-1\"\u003e\u003cp\u003eUpgrade your bike's performance with the Sunlite SL-55 Square Taper JIS 73x113.5mm Sealed Bearings English Bottom Bracket. Designed for durability, reliability, and smooth pedaling, this high-quality bottom bracket is an essential component for both casual riders and serious cyclists.\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 an sturdy alloy shell and alloy cups, the Sunlite SL-55 offers excellent corrosion resistance and longevity. The chromoly spindle enhances strength and stiffness, providing efficient power transfer during each pedal stroke. The sealed bearings protect against dirt, water, and debris, ensuring consistent performance in various 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\u003eEngineered for precise fit and reliable operation, this bottom bracket features standard JIS (Japanese Industrial Standard) threading, compatible with many 68mm or 70mm shells. The sealed bearing design minimizes maintenance needs while maximizing smoothness and efficiency, making it ideal for daily commuting, mountain biking, or recreational riding.\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\u003eEquipped with sealed bearings, the Sunlite SL-55 reduces friction and prevents contamination, extending the lifespan of the bottom bracket. The chromoly spindle offers a lightweight yet robust solution, optimizing power transfer without adding unnecessary weight.\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\u003eWith its sleek alloy finish, the Sunlite SL-55 complements a wide range of bikes, including road, mountain, and hybrid models. Its straightforward design makes it suitable for installation on various bike frames, offering a reliable upgrade to improve pedaling efficiency and ride quality.\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-10\"\u003e\u003cp\u003eInnovative \u0026amp; Differentiating Features\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-11\"\u003e\u003cp\u003eThe combination of alloy shell and cups, along with sealed bearing technology, sets the Sunlite SL-55 apart from basic bottom brackets. It delivers high performance at an affordable price point, making it an excellent choice for riders seeking durability and smooth operation.\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- Shell Width: 73mm\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-14\"\u003e\u003cp\u003e- Spindle Length: 113.5mm\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-15\"\u003e\u003cp\u003e- Materials: Alloy shell, alloy cups, chromoly spindle\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-16\"\u003e\u003cp\u003e- Sealed bearings for protection against elements\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-17\"\u003e\u003cp\u003e- Compatible with JIS threaded bike frames\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-18\"\u003e\u003cp\u003eInvest in the Sunlite SL-55 Square Taper Bottom Bracket for a seamless cycling experience, enhanced power transfer, and long-lasting performance. Perfect for upgrading your current bike or building a new ride from the ground up!\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpfeatures\"\u003e\u003cul\u003e\n\u003cli\u003eHigh-quality alloy shell and cups deliver durability and corrosion resistance, ensuring long-lasting performance in all riding conditions. \u003c\/li\u003e\n\u003cli\u003eEngineered with a precision chromoly spindle for enhanced power transfer, optimizing pedaling efficiency and responsiveness on the bike. \u003c\/li\u003e\n\u003cli\u003eIncludes sealed bearings that provide smooth operation, reduce friction, and protect against dirt and moisture, increasing lifespan and maintenance intervals. \u003c\/li\u003e\n\u003cli\u003eDesigned for Shimano square taper JIS 73x113.5mm frames, offering universal compatibility for a wide range of bicycles. \u003c\/li\u003e\n\u003cli\u003eAn ideal choice for road, mountain, and hybrid bikes seeking reliable, high-performance bottom brackets with a sleek, lightweight aluminum construction.\u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/div\u003e","brand":"Sunlite","offers":[{"title":"Default Title","offer_id":42207494766659,"sku":"BTBK0321","price":36.59,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1608\/6187\/files\/17150.jpg?v=1773873809","url":"https:\/\/365cycles.com\/products\/sunlite-sl-55-bb-73mm-square-taper-jis-bottom-bracket-btbk0321-bicycle-bottom-brackets","provider":"365 Cycles","version":"1.0","type":"link"}