Ironman adopts World Triathlon’s bike hydration rules

Well, that was fast. On Sunday I wondered if Ironman would adopt World Triathlon’s new rules limiting the amount of hydration that can be carried on the bike, and today I got my answer: Yep. In the 2025 Ironman competition rules, the section on bike equipment has been updated to be consistent with World Triathlon rules: (i) Front Mounted Water Bottles and Hydration Systems mounted to components…