{"product_id":"rotor-bb1-road-threaded-to-24mm-steel-bottom-bracket","title":"Rotor BB1 Road Threaded to 24mm Steel Bottom Bracket","description":"\u003cdiv\u003e\n\u003cp\u003eThe \u003cstrong\u003eRotor BB1 Road Threaded to 24mm Steel Bottom Bracket\u003c\/strong\u003e is Rotor's foundational external cup bottom bracket — straightforward in design, reliable in function, and built to fit both English (BSA) and Italian-threaded frames. Two machined 7075-T6 aluminium cups house pressed-in sealed steel ball bearings, keeping maintenance low and friction lower.\u003c\/p\u003e\n\n\u003cp\u003eThe 24mm inner diameter makes this bottom bracket compatible with Rotor's 3D24 road crankset, as well as Shimano road cranks and FSA MegaExo cranks. A sleeve seals the internals against moisture ingress through the frame shell, and the splined cups are designed to work with most standard external bottom bracket tools. The complete kit weighs 96g.\u003c\/p\u003e\n\n\u003ch3\u003eRotor BB1 Road Threaded to 24mm Steel — Specs at a Glance\u003c\/h3\u003e\n\u003cul class=\"specs_at_a_glance\"\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShell compatibility:\u003c\/strong\u003e English (BSA) or Italian threaded — available as separate variants\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBearing inner diameter:\u003c\/strong\u003e 24mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCup material:\u003c\/strong\u003e 7075-T6 machined aluminium\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBearings:\u003c\/strong\u003e Sealed steel ball bearing races\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 96g (complete kit)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Rotor","offers":[{"title":"English \/ Black","offer_id":43594240360492,"sku":"C04-004-01010-0","price":34.99,"currency_code":"USD","in_stock":false},{"title":"Italian \/ Black","offer_id":43594240393260,"sku":"C04-002-01010-0","price":34.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0608\/7684\/9196\/files\/rotor-bb1-road-threaded-to-24mm-steel-bottom-bracket-9089763.jpg?v=1771294697","url":"https:\/\/ricycles.com\/products\/rotor-bb1-road-threaded-to-24mm-steel-bottom-bracket","provider":"RA Cycles","version":"1.0","type":"link"}