Jonah Rosner raises carb ceiling to 120g/hr

- Sports scientist Jonah Rosner updated endurance carb guidance, recommending a 120 grams per hour ceiling for the longest, highest‑intensity events. - The shift replaces narrower ceilings and signals higher fueling targets for sustained elite or long‑duration efforts. - Rosner posted the update on X, echoing UCI reviews that support higher carb strategies for certain events. (x.com)