World Triathlon Updates Hydration Rules

I’m just gonna roll with this setup for St. George, but I don’t have a great many options when Ironman starts enforcing this. If I replace the elevator with the basic riser and angled spacers, and maybe reduce the angle of the handlebars to bring up the ends of the arm scoops, I might get the 2 cm I need. But I really don’t want to mess with my fit just to make it work, so I’ll probably just go back to a basic one BTA bottle setup.

That’s how I interpreted it. “All attached objects on the
handlebars” must fit within the area, not the handlebars themselves.

Replying in general…does this mean that saddle like the Wove V8 with it’s integrated bottle mount is now illegal?

Why would it be? Nothing about it violates any of the rules

Again the integrated hydration exception only applies to integrated hydration thats behind the saddle (so the SHIV). doesnt apply to the scott

Correct this caused confusion when DTU released that graphic originally. It was clarified that it has nothing to do with shifter height

Well I don’t know, that’s why I’m asking. The bottle mount technically resides outside of that designated box no?

At the rate these rules are changing triathletes are gonna need a new setup for every race

The 30x30 box can be anywhere behind the saddle. All the rules are saying is that everything behind the saddle must live in a 30cmx30cm box

Im actually happy with this alignment because this was the issue before. WTC, ironman, and DTU all had different rules. This ment that your ironman setup wasnt allowed at roth and what not. Now that all 3 are aligned you can find a compliant set up and roll with it.

I guess the asterisk here is that they stay aligned and they dont change them for the rest of the year or forseeable future

Well not quite: the 300mm x 300mm cannot be “anywhere” BTS.
Here is the relevant extract:
3. Rear
– All attached holders, containers, bottle holders, etc. must fit completely into an imaginary frame no larger than 30x30cm. Bottles may protrude beyond this area.
So the front edge of the 300mm ‘frame’ is defined by (the point) where the bottle holders are attached (not just “behind the saddle”). Saddle is not mentioned.
For @Nick_wovebike 's Wove saddle this attachment point is at the furthest rear extremity, maximising any aero effect (discuss).

Side issue: Why on earth are they using centimetres, the international standard metric for these lengths is millimetres.

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Ah yes great clarification! so yea for wove its at the mounting points on the rear of the saddle. I think some people are seeing the picture and saying hey the saddle is above the box in that example (but this is just the example in the diagram.

What bothers me the most is that they use both mm and cm!

The issue for you is that standard cages will be counted as holding 750ml bottles, so you can’t have 3 of those on the bars. But you could have 2 and a sub 500ml aero bottle.

More generally - shifters, extension grips, computers and their mounts are not included in the bottle mount box.

Note that the rules for the front include the bottles in the allowed box. But the rules for the rear do not.

Also worth noting - the German version of the rules says that parts must be made of ‘unbreakable’ material which I had thought was their provision against 3D printed parts, but that hasn’t made it through to the World Tri version. For @mebwessel - you need to measure the height of your fin and cage, but also consider whether you want to risk turning up with a 3d printed part.

Ironman already has
2.01 (m) Only use equipment that meets or exceeds the standards of a reputable safety standards organization (such as CPSC, CE EN1078, AS/NZS 2063, ISO, or other equally reputable safety standards organizations) and is in good condition

From my involvement in these topics - the motivation of the Tri organising bodies is very different to the UCI. Where the UCI just have opinions about how something should look - the Tri bodies are motivated by safety and fairness.

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Huh. I hadn’t seen that any standard cage defacto counts as 750ml capacity. I figured I could run a smaller bottle or even a flat kit plus a few larger bottles. Not the case I guess?

The World Triathlon press release / interpretation document certainly doesn’t state that, so I would interpret it to mean total volume of bottles on the bike at any point during the race. Maybe the actual rules (once the english version is release) further constrain this?

So is it correct to take this to mean QR’s filler block on their version of the Aeria hydration will become illegal (definitely less than 20 mm above the tire).

Agree here - I dont see anything like this in the full DTU version either - I think you would get in trouble is if you get caught with 3 fullsize bottle on there during race

Interesting they went with 2L instead of 1.5 or 2.25L for this reason

I have read the ‘actual’ rules which the linked interpretation is designed to explain. No additional insight.

WT Competition Rules extract:
*5.2 l.) Fairings are prohibited. Fairings are defined as . . . *
m.) Hydration Volume Limitation: Hydration volume (e.g. bottles or hydration systems) mounted to components that rotate around the steering axis (e.g. cockpit extensions, base bar) must have a combined maximum capacity of 2 litres;
n.) Rear Mounted hydration systems, (excluding those mounted to the inside the frame triangle bike are limited in size, capacity, dimension and location as set forth below:
(i) cannot contain more than two water bottles;
(ii) must not exceed 1L capacity per bottle.

And from the document: Rule interpretation document on the World Triathlon Fairing rules:
BTA: "Hydration volume (e.g. bottles or hydration systems) . . . may
have a combined maximum capacity of 2 litres;"

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No, the rules don’t state it. Which introduces frustrating ambiguity, so I would advise that it’s the spirit of the rules based on the conversations that have been happening.

I don’t know what the TOs will be trained on, so it could be ok. But my suggestion would be to have a max of 2 standard cages.

I think the problem is, we don’t yet have the new, actual rules in English. The rule set you linked to is from January, and there is a 1 April revision out there too. Neither has the new side view box rules.

DTU has released a revised rule set with a 15 April update. It seems we are presuming World Triathlon is taking on DTU’s fairing rule, but we need to see the actual English version from World Triathlon. FWIW, a machine translated version of the DTU rules makes no mention of a presumed bottle volume per bottle cage rule.