{"product_id":"rotor-pf4624-evo386-to-24mm-ceramic-bottom-bracket","title":"Rotor PF4624 (EVO386) to 24mm Ceramic Bottom Bracket","description":"\u003cdiv\u003e\n\u003cp\u003eThe \u003cstrong\u003eRotor PF4624 (EVO386) to 24mm Ceramic Bottom Bracket\u003c\/strong\u003e solves a specific problem cleanly: you have a BB386 EVO shell on your frame and a 24mm spindle crank you want to run. This press-fit adapter bridges that gap using two machined 7075-T6 aluminum cups and hybrid ceramic bearings — ceramic balls running against steel races for reduced rolling resistance and better durability over time.\u003c\/p\u003e\n\n\u003cp\u003eThe BB386 EVO standard offers an 86.5mm shell width and 46mm inner diameter, giving frame designers the stiffness benefits of a wider shell without locking you into a specific spindle diameter. Rotor's ceramic bearing choice here is a logical fit — ceramic balls are harder and rounder than steel, which means less friction and greater tolerance for the contamination and load cycling a bottom bracket endures. At 111g for the complete set, the assembly adds minimal weight to the equation. Installation follows a straightforward press-fit process: one cup, the sealing cylinder, then the second cup.\u003c\/p\u003e\n\n\u003ch3\u003eRotor PF4624 (EVO386) to 24mm Specs at a Glance\u003c\/h3\u003e\n\u003cul class=\"specs_at_a_glance\"\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBottom bracket standard:\u003c\/strong\u003e BB386 EVO (PF4624)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSpindle compatibility:\u003c\/strong\u003e 24mm thru-axle\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShell width:\u003c\/strong\u003e 86.5mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShell inner diameter:\u003c\/strong\u003e 46mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBearing type:\u003c\/strong\u003e Hybrid ceramic (ceramic balls, steel races)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 111g (complete set)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Rotor","offers":[{"title":"Red","offer_id":43517815750700,"sku":"C04-026-03010-1","price":119.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0608\/7684\/9196\/files\/rotor-pf4624-evo386-to-24mm-ceramic-bottom-bracket-1012292.jpg?v=1771298647","url":"https:\/\/ricycles.com\/products\/rotor-pf4624-evo386-to-24mm-ceramic-bottom-bracket","provider":"RA Cycles","version":"1.0","type":"link"}