It’s one of our most awaited articles of the year — the fastest bikes and associated components used at the 2026 IRONMAN World Championship. This year saw an interesting mix of choices. The fastest women’s rider was in an aero road helmet instead of a pure TT one and didn’t use the raciest tire that Continental has on offer. On the men’s side, a Pinarello bike was under the fastest rider, but there were some interesting choices there, too.
Of note: more than half of the fastest bike splits came from SRAM equipped drivetrains. Bikes were mixed amongst a fair number of brands. Continental remains the preferred choice of the fastest pros, but Pirelli is making in-roads. And there are twelve different wheel manufacturers in these top splits. Peak aero, indeed.
Let’s get down to business. As always: you had to be in it at the end to win it, so no Lucy Charles-Barclay or Magnus Ditlev to be found here (among some other speedy rides).
Often wonder what the advantage/disadvantage is from carrying 3 or even 4 full bottles on the bike, (weight especially) as opposed to slowing down a little at each aid station and taking on course nutrition/hydration? I assume they test pros and cons.
Its all about aero. Not all of these bottles are necessarily full.
Max Walscheid, WorldTour Pro with Lidl-Trek, criticises Knibbs helmet choice as wasting significant watts compared to time trial options (according to his own tests, being a Trek rider himself).
Obviously, every rider is different with a different body shape, so there is not one helmet that is consistently fastest, but historically Knibb is not known for being at the pointy end of aero in the field either. But at the pointy end of Kona26 and that is all that matters in the end.
I do like how the athletes sponsored by Specialized have a paint job reminiscent of a WW1 Battleship - designed to make it difficult to estimate speed, range, and heading.
Like Taylor always says… The great thing about KONA is anyone can qualify and try to do it better
All of those bottles go out stuffed with calories and H20 though.. Aero is a by product of the need to fuel on the bike due to the lack of easy to grab calories on course.
Thank you for posting these pictures!
There are far more similarities than differences among the bikes - especially hydration (or aero if the bottles are empty).
A lot of 1X drivetrains, almost all on tubeless, and (not completely sure) only one rider, who weighs 126 pounds, on Hookless.
Is Nick Thompson riding the new Factor road bike?
You have the shoes for Vincent listed as “Specialized Aero Cotton” . Those would be the tires. I believe by the looks of them they are the Specialized Ares 2
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Often wonder what the advantage/disadvantage is from carrying 3 or even 4 full bottles on the bike, (weight especially) as opposed to slowing down a little at each aid station and taking on course nutrition/hydration? I assume they test pros and cons.
Its all about aero. Not all of these bottles are necessarily full.
Max Walscheid, WorldTour Pro with Lidl-Trek, criticises Knibbs helmet choice as wasting significant watts compared to time trial options (according to his own tests, being a Trek rider himself).
Obviously, every rider is different with a different body shape, so there is not one helmet that is consistently fastest, but historically Knibb is not known for being at the pointy end of aero in the field either. But at the pointy end of Kona26 and that is all that matters in the end.
I do like how the athletes sponsored by Specialized have a paint job reminiscent of a WW1 Battleship - designed to make it difficult to estimate speed, range, and heading.
Like Taylor always says… The great thing about KONA is anyone can qualify and try to do it better
All of those bottles go out stuffed with calories and H20 though.. Aero is a by product of the need to fuel on the bike due to the lack of easy to grab calories on course.
Thank you for posting these pictures!
There are far more similarities than differences among the bikes - especially hydration (or aero if the bottles are empty).
A lot of 1X drivetrains, almost all on tubeless, and (not completely sure) only one rider, who weighs 126 pounds, on Hookless.
Is Nick Thompson riding the new Factor road bike?
You have the shoes for Vincent listed as “Specialized Aero Cotton” . Those would be the tires. I believe by the looks of them they are the Specialized Ares 2
It’s the One SP - an official Factor hybrid
Very cool, although I hate the “hybrid” designation
Solveig rides a Continental GP 5000 TT on the rear
Thank you so much for this. Saddle choice would be one of the more important things to know. Do you have this?
Similar strategy: MM used an Archetype on the rear