{"product_id":"shimano-bottom-bracket-bb-un300-select-option-bsa-73mm","title":"SHIMANO Bottom Bracket BB-UN300 ( Select Option=BSA 73MM, 122.5MM(LL123), W\/O FIXING BOLT)","description":"\u003ch1 data-section-id=\"cljvyj\" data-start=\"0\" data-end=\"70\"\u003eSHIMANO Bottom Bracket BB-UN300 BSA 73mm 122.5mm Without Fixing Bolt\u003c\/h1\u003e\n\u003cp data-start=\"72\" data-end=\"1020\"\u003eThe SHIMANO Bottom Bracket BB-UN300 is designed to deliver reliable performance, smooth pedaling efficiency, and long-lasting durability for everyday cycling and performance riding needs. Built with Shimano’s trusted engineering quality, this bottom bracket provides a stable and consistent drivetrain experience while reducing unwanted movement and friction during riding. The BB-UN300 features a strong sealed cartridge design that helps protect internal components from dust, dirt, and moisture, allowing riders to enjoy dependable operation in different riding conditions. With a BSA threaded 73mm shell compatibility and a 122.5mm spindle length, it is suitable for selected crankset setups and bicycle configurations. Whether you are upgrading an existing drivetrain or replacing a worn-out bottom bracket, the Shimano BB-UN300 offers durability, smooth rotation, and dependable performance for daily rides, touring, and recreational cycling.\u003c\/p\u003e","brand":"Oyeathlete","offers":[{"title":"Default Title","offer_id":42441538404387,"sku":"EBBMT501B","price":1310.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0729\/2043\/2675\/files\/Untitled-2026-05-23T130545.129.webp?v=1779521997","url":"https:\/\/oyeathlete.com\/products\/shimano-bottom-bracket-bb-un300-select-option-bsa-73mm","provider":"Oyeathlete","version":"1.0","type":"link"}