Why the wheel you race in Puerto Rico isn't the wheel you race in Nice

Same athlete. Same power. Same bike. Different wheels — and if that surprises you, this article is for you.

What Puerto Rico asks of a wheel

Most of our racing lives on coastal roads: flat to rolling, fast, and swept by trade winds that arrive from the side more often than the front. Heat, salt, and speed. On courses like these, depth pays. A deep-section rear or a full disc holds speed the way nothing shallow can, and the penalty — weight, crosswind push — is manageable because the roads rarely tilt and the wind is steady enough to learn.

This is why the fastest local setups run deep: 58–65mm sections, disc rears on the calmest days, deep front wheels for riders with the handling confidence to hold them.

What Nice asks instead

The IRONMAN 70.3 World Championship course climbs roughly 1,190 metres, most of it in one sustained effort over the Col de Vence — followed by a long, technical descent where the bike is doing 70km/h through corners with names.

Every centimetre of rim depth you carry up that climb is rotating mass working against you. Every centimetre you carry down the other side is side-area the wind can grab mid-corner. The wheel that wins in Guánica gets you dropped — or scared — above Vence.

How we actually chose

Our own Worlds build made these trade-offs concretely. The full disc — on paper the fastest rear wheel we sell — was the first thing rejected: wrong tool for 1,190 metres of climbing and an exposed alpine descent. The deepest front options went next, for the same reason, squared: the front wheel is where handling lives.

What survived: a rear tri-spoke that behaves like a disc in a straight line but sheds crosswind load a disc cannot, at a weight lighter than many shallow climbing wheels — and a moderate-depth three-spoke front chosen for steering stability first, aerodynamics second.

Not the fastest wheels in the shop. The fastest wheels for that course. That distinction is the entire discipline of equipment choice.

The framework, in three questions

1. What does the course profile look like? Sustained climbing punishes depth. Flat and rolling rewards it. Look at the elevation chart, not the vibes.

2. What does the wind do there? Steady trade winds you can learn. Gusting mountain crosswinds you cannot. The more unpredictable the air, the shallower the front wheel.

3. How much do you weigh, and how confident are you descending? A 58kg athlete and an 85kg athlete experience the same 65mm front wheel completely differently. There is no shame in the honest answer — only free speed in it.

The short version

Don't buy the wheel that won your Instagram feed. Buy the wheel your course, your wind and your body agree on. If you're not sure what that is — that's literally what we're here for. Tell us your event and your weight, and we'll tell you which pair.

Curated, not distributed.