{
  "$type": "site.standard.document",
  "description": "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 attached to the bike that rotate around the steering axis (e.g., cockpit extensions, top tube, headset, stem, head tube) must have a combined maximum volume capacity of no more than two (2) liters (this excludes water bottles and hydration systems located inside the frame triangle of a bicycle or inside the bicycle frame) (DSQ). (ii) Rear Mounted Water Bottles and Hydration Systems are limited in size, capacity, dimension and location as set forth below: (i) Cannot contain more than two (2) water bottles* (DSQ); and (ii) Must not exceed one (1) liter capacity per bottle* (DSQ). *Excludes water bottles and hydration systems located inside the frame triangle of a bike or inside the bike frame. Here's a full summary of the updated competition rules, which include a few other verbiage changes and updates for consistency with World Triathlon. Among other things, the penalties for blue card violations, such as drafting and littering, have been reduced to 3 minutes for full Ironmans and 2 minutes for 70.3s (down from 5 minutes for both). The rules also clarify that you can wear neoprene hats whenever wetsuits are allowed and that you can wear two swim caps (in both cases you still have to wear the race cap on top). Ironman also has a short FAQ that explains the changes very clearly.",
  "path": "/2025/02/26/ironman-adopts-world-triathlon-bike-hydration-rules/",
  "publishedAt": "2025-02-26T22:30:00.000Z",
  "site": "at://did:plc:vmxpdybfbj3ogs4w6p5pjhhs/site.standard.publication/self",
  "tags": [
    "Ironman 70.3",
    "News",
    "Triathlon"
  ],
  "textContent": "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 attached to the bike that rotate around the steering axis (e.g., cockpit extensions, top tube, headset, stem, head tube) must have a combined maximum volume capacity of no more than two (2) liters (this excludes water bottles and hydration systems located inside the frame triangle of a bicycle or inside the bicycle frame) (DSQ). (ii) Rear Mounted Water Bottles and Hydration Systems are limited in size, capacity, dimension and location as set forth below: (i) Cannot contain more than two (2) water bottles* (DSQ); and (ii) Must not exceed one (1) liter capacity per bottle* (DSQ). *Excludes water bottles and hydration systems located inside the frame triangle of a bike or inside the bike frame. Here's a full summary of the updated competition rules, which include a few other verbiage changes and updates for consistency with World Triathlon. Among other things, the penalties for blue card violations, such as drafting and littering, have been reduced to 3 minutes for full Ironmans and 2 minutes for 70.3s (down from 5 minutes for both). The rules also clarify that you can wear neoprene hats whenever wetsuits are allowed and that you can wear two swim caps (in both cases you still have to wear the race cap on top). Ironman also has a short FAQ that explains the changes very clearly.",
  "title": "Ironman adopts World Triathlon's bike hydration rules",
  "updatedAt": "2025-08-19T22:52:46.250Z"
}