{"product_id":"bb-alpha-bottom-bracket-t47-86-inboard-17tp5","title":"CeramicSpeed BB Alpha Bottom Bracket - T47\/86 (Inboard)","description":"\u003cp\u003e\u003cstrong\u003ePerformance \u0026amp; Use Case\u003c\/strong\u003e\u003cbr\u003e\nBB Alpha is designed to outlast the frame it is fitted to. For T47 86mm threaded framesets, it is the bottom bracket that resists the contamination that typically kills standard alloy bearings within a season. For road, tri and track riders building a long-life T47 frameset, it is the bottom bracket that won't be the weak link.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eConstruction \u0026amp; Materials\u003c\/strong\u003e\u003cbr\u003e\nEach BB Alpha unit features hardened stainless steel races hand-built with grade 3 Silicon Nitride ceramic balls. Custom-engineered seals and precision dust covers together provide up to 500% better moisture protection than standard bottom brackets, while still maintaining ultra-low friction. A simplified spacer tube design and lighter cups give a 10% weight saving over previous BB Alpha generations and make installation quicker.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eCompatibility\u003c\/strong\u003e\u003cbr\u003e\nFits any frameset with a T47 86mm threaded shell, bearings placed inboard. Two spindle-compatibility options cover Shimano Hollowtech II (24mm) and SRAM DUB (28.99mm). Select the variant that matches your crankset. All BB Alpha models are backed by CeramicSpeed's lifetime warranty.\u003c\/p\u003e","brand":"CeramicSpeed","offers":[{"title":"24mm - Shimano Hollowtech II \/ Black","offer_id":54293059141978,"sku":"1988985","price":339.0,"currency_code":"GBP","in_stock":true},{"title":"28.99mm - SRAM DUB \/ Black","offer_id":54293059174746,"sku":"1977234","price":339.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0956\/0827\/5290\/files\/CeramicSpeed-BB-Alpha-for-T47-86-SRAM-DUB-Road-Ceramic-Bearing-Bottom-Bracket-Black.jpg?v=1781186708","url":"https:\/\/checkout.sigmasports.com\/products\/bb-alpha-bottom-bracket-t47-86-inboard-17tp5","provider":"Sigma Sports","version":"1.0","type":"link"}