{"product_id":"rotor-4224-bb30-road-to-24mm-ceramic-bottom-bracket","title":"Rotor 4224 BB30 Road to 24mm Ceramic Bottom Bracket","description":"\u003cdiv\u003e\n\u003cp\u003eThe \u003cstrong\u003eRotor 4224 BB30 Road to 24mm Ceramic Bottom Bracket\u003c\/strong\u003e solves a specific problem cleanly: fitting 24mm spindle cranks into a BB30 shell without resorting to press-fit adapters that creak and fail. Two external cups thread into each other inside the 42mm BB30 shell, housing hybrid bearings — steel races paired with ceramic balls — that run smoother and last longer than standard steel-on-steel setups. The cups themselves are machined from 7075-T6 aluminum and splined for use with conventional bottom bracket tools, so installation is straightforward.\u003c\/p\u003e\n\n\u003cp\u003eCeramic balls are rounder and harder than steel, which means lower rolling resistance and less maintenance over the life of the bearing. If you're running 24mm spindle cranks on a BB30-standard frame, this is the cleanest solution available — \u003cstrong\u003eno adapters, no shimming, no compromises in drivetrain feel\u003c\/strong\u003e. The cup design threads together through the shell, which keeps the whole assembly aligned and stable under load.\u003c\/p\u003e\n\n\u003ch3\u003eRotor 4224 BB30 Road to 24mm Specs at a Glance\u003c\/h3\u003e\n\u003cul class=\"specs_at_a_glance\"\u003e\n  \u003cli\u003eStandard: BB30 (42mm shell inner diameter)\u003c\/li\u003e\n  \u003cli\u003eSpindle compatibility: 24mm thru-axle cranks\u003c\/li\u003e\n  \u003cli\u003eBearing type: Hybrid ceramic — steel races, ceramic balls\u003c\/li\u003e\n  \u003cli\u003eCup material: 7075-T6 aluminum\u003c\/li\u003e\n  \u003cli\u003eTool interface: Splined cups, compatible with standard BB tools\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Rotor","offers":[{"title":"Red","offer_id":43517814636588,"sku":"C04-015-03010-1","price":124.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0608\/7684\/9196\/files\/rotor-4224-bb30-road-to-24mm-ceramic-bottom-bracket-2793079.jpg?v=1771298648","url":"https:\/\/ricycles.com\/products\/rotor-4224-bb30-road-to-24mm-ceramic-bottom-bracket","provider":"RA Cycles","version":"1.0","type":"link"}