{"product_id":"shimano-bottom-bracket-xl-w-o-fixing-bolts-73-x-11","title":"SHIMANO Bottom Bracket XL w\/o Fixing Bolts 73 x 118mm BB-UN300","description":"The SHIMANO BB-UN300 is a reliable cartridge-style bottom bracket designed for everyday cycling. With a 73mm shell width and 118mm axle length, it fits standard cranksets and delivers smooth, consistent performance. The sealed cartridge design keeps internal components protected from dirt and moisture, extending service life. Installation requires your own fixing bolts, making this a cost-effective replacement option for commuters and casual riders. Compatible with square-taper cranks, it's built to SHIMANO's trusted standards for durability and dependable rotation.","brand":"Port Kennedy Cycles \u0026 Fishing","offers":[{"title":"Default Title","offer_id":51806444749082,"sku":null,"price":39.95,"currency_code":"AUD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0986\/4403\/3818\/files\/shimano-shimano-bb-un300-bottom-bracket-73x118mm-x.png?v=1778209120","url":"https:\/\/port-kennedy-cycles-fishing.myshopify.com\/products\/shimano-bottom-bracket-xl-w-o-fixing-bolts-73-x-11","provider":"Port Kennedy Cycles \u0026 Fishing","version":"1.0","type":"link"}