{"product_id":"rotor-4224-bb30-mtb-to-24mm-ceramic-bottom-bracket","title":"Rotor 4224 BB30 MTB to 24mm Ceramic Bottom Bracket","description":"\u003cdiv\u003e\n\u003cp\u003eThe \u003cstrong\u003eRotor 4224 BB30 MTB to 24mm Ceramic Bottom Bracket\u003c\/strong\u003e solves one of the more persistent frustrations in mountain bike setup: getting a 24mm spindle crank to run cleanly in a BB30 shell. Two external aluminium cups thread together inside the BB30 shell, accepting 24mm thru-axle cranks without pressed-in adapters — which means no creaking, and no compromise on drivetrain feel.\u003c\/p\u003e\n\n\u003cp\u003eThe ceramic hybrid bearings are what separate this from a straightforward adaptor solution. Steel races combined with ceramic balls roll with less friction than an all-steel bearing and require less maintenance over time — ceramic balls are harder, rounder, and more resistant to wear. The 7075-T6 aluminium cups are splined for compatibility with standard bottom bracket cup tools, so installation is straightforward. For MTB riders running a BB30 frame who want to use a 24mm spindle crank, this bracket is a direct, low-friction path to getting there.\u003c\/p\u003e\n\n\u003ch3\u003eRotor 4224 BB30 MTB to 24mm Ceramic Bottom Bracket — Specs at a Glance\u003c\/h3\u003e\n\u003cul class=\"specs_at_a_glance\"\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShell standard:\u003c\/strong\u003e BB30 MTB\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSpindle compatibility:\u003c\/strong\u003e 24mm thru-axle cranks\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBearing type:\u003c\/strong\u003e Ceramic hybrid (steel races, ceramic balls)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCup material:\u003c\/strong\u003e 7075-T6 aluminium\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInstallation:\u003c\/strong\u003e Threaded cups, compatible with standard BB cup tools\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Rotor","offers":[{"title":"Red","offer_id":43517670064172,"sku":"C04-016-01030-1","price":124.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0608\/7684\/9196\/files\/rotor-4224-bb30-mtb-to-24mm-ceramic-bottom-bracket-8673847.jpg?v=1771298708","url":"https:\/\/ricycles.com\/products\/rotor-4224-bb30-mtb-to-24mm-ceramic-bottom-bracket","provider":"RA Cycles","version":"1.0","type":"link"}