{"product_id":"shimano-bb-un300-bottom-bracket-68mm-square-taper-jis-bottom-bracket-cr3496-bicycle-bottom-brackets","title":"Shimano BB-UN300 JIS Square Taper Bottom Bracket 68x127.5mm","description":"\u003cdiv id=\"seqbpdescription-1\"\u003e\u003cp\u003eEnhance your bicycle's performance with the Shimano BB-UN300-K Square Taper JIS 68x127.5mm Bottom Bracket, the ideal choice for reliable and smooth power transfer in a variety of bike setups. Engineered with precision materials and cutting-edge technology, this bottom bracket ensures durability, efficient pedaling, and a seamless riding experience.\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 from high-quality steel with a durable hollow spindle, the Shimano BB-UN300-K offers excellent strength and rigidity while minimizing weight. Its black finish not only provides corrosion resistance but also complements a sleek bike aesthetic, making it suitable for both everyday rides and high-performance cycling.\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\u003eDesigned specifically for use with chain case-equipped bicycles, this bottom bracket features a precision-crafted JIS square taper interface, ensuring a secure and consistent fit with compatible cranksets. Its 68mm shell width and 127.5mm spindle length optimize pedaling efficiency, translating your power into smooth and responsive rides.\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 hollow spindle design reduces weight without compromising strength, providing better acceleration and agility. Compatible with JIS square-taper cranksets, the Shimano BB-UN300-K is engineered for easy installation and long-lasting performance. Please note that crankarm fixing bolts are sold separately, allowing you to customize your setup.\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\u003ePerfect for city commuting, mountain biking, or recreational cycling, this bottom bracket offers a combination of functional versatility and rugged durability. Its straightforward design makes it ideal for riders seeking a dependable, easy-to-maintain bottom bracket compatible with chain case systems.\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\u003eShimano's renowned engineering ensures consistent quality and performance, backed by decades of cycling expertise. The black finish provides a sleek look, while the hollow spindle enhances weight savings, giving you a performance edge on every ride.\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-12\"\u003e\u003cp\u003eKey Product Specs:\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-13\"\u003e\u003cp\u003e- Shell I.D.: 1.37 inches\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-14\"\u003e\u003cp\u003e- BB\/Frame Interface: English (BSA)\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-15\"\u003e\u003cp\u003e- Shell Width: 68mm\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-16\"\u003e\u003cp\u003e- Spindle Interface Type: Square Taper JIS\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-17\"\u003e\u003cp\u003e- Spindle Length: 127.5mm\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-18\"\u003e\u003cp\u003e- Color: Black\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-19\"\u003e\u003cp\u003eUpgrade your bicycle's drivetrains with the Shimano BB-UN300-K Square Taper Bottom Bracket - engineered for durability, optimized for performance, and designed to seamlessly integrate with your existing bike components for a smooth, efficient ride.\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpfeatures\"\u003e\u003cul\u003e\n\u003cli\u003eHigh-quality, durable construction with a hollow spindle design for enhanced stiffness and weight savings, ensuring efficient power transfer on every pedal stroke.\u003c\/li\u003e\n\u003cli\u003eEngineered to fit JIS square-taper cranksets with a 68mm shell width and 127.5mm spindle length, providing compatibility with a wide range of classic and vintage bicycles.\u003c\/li\u003e\n\u003cli\u003eMade from premium materials to withstand demanding riding conditions, ideal for chain case applications and long-lasting performance in daily commuting or recreational riding.\u003c\/li\u003e\n\u003cli\u003eDesigned with an English bottom bracket shell interface (1.37\" I.D.) for easy installation and maintenance, perfect for upgrading or restoring your bike's drivetrain system.\u003c\/li\u003e\n\u003cli\u003eFeatures a sleek black finish and innovative square-taper JIS technology, offering a reliable, secure fit for smooth pedaling, efficient power transfer, and enhanced cycling performance.\u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/div\u003e","brand":"Shimano","offers":[{"title":"Default Title","offer_id":42205935108163,"sku":"CR3496","price":18.76,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1608\/6187\/files\/CR3495_c7756891-7afe-4d67-afaf-0ce313d5fde4.jpg?v=1773777792","url":"https:\/\/tecopecosafe.com\/products\/shimano-bb-un300-bottom-bracket-68mm-square-taper-jis-bottom-bracket-cr3496-bicycle-bottom-brackets","provider":"365 Cycles","version":"1.0","type":"link"}