The Bikes of the Top 15 Fastest Pro Men at the 2025 IRONMAN World Championship

Triathlon Forum
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Originally published at: The Bikes of the Top 15 Fastest Pro Men at the 2025 IRONMAN World Championship - Slowtwitch News

It’s everyone’s favorite comprehensive bike gallery of the year. (Literally: this has been one of our top articles since we started doing this 20 years ago.) We’re looking at the gear of the top 15 professional men’s bike splits from the 2025 IRONMAN World Championships in Nice, France. Like with IRONMAN course records, we only track those of athletes who completed the entire course. That means you won’t see, for instance, Magnus Ditlev and his Scott Plasma. (If you want to see that bike, you can visit our pullout gallery from before the race here.)

A major trend of note was just how many pro men rode the Continental Grand Prix 5000TT TR tire. Multiple athletes made last-minute switches onto this tire. Of the top 15 bike splits, all but four of them used that specific tire. A couple of other athletes used other tires within the Continental product line. Nick Thompson was the lone holdout for a full set of wheels, riding Pirelli tires; you’ll spot one athlete who had different tire brands for the front and rear.

Of course, the other major trend is with aerobars continuing to evolve in shape. Just Matthew Marquardt had what you could call a “traditional” shape to his aerobars, but even they follow the seemingly standard “high hands” positioning.

Photos: Kevin Mackinnon

1.) Sam Laidlow – 4:29:29

Frame: Canyon Speedmax CFR
Wheels: Swissside HADRON³ Ultimate 850 (front), HADRON³ Ultimate Disc (rear)
Tires: Continental Grand Prix 5000TT TR
Cockpit: Canyon Custom
Drivetrain: SRAM Red 1X
Crank Length: 165mm
Pedals: Favero Assioma
Rear Derailleur Hanger: Ceramicspeed OSPW Aero
Saddle: Prologo Dimension Tri CPC
Front Hydration: Canyon, Dual Bottle XLAB Gorilla Cage
Rear Hydration: Canyon, XLAB Gorilla Cage

2.) Gustav Iden – 4:30:17

Frame: Giant Trinity Advanced SL
Wheels: CADEX 4-Spoke (front), CADEX Disc (rear)
Tires: Continental Grand Prix 5000TT TR
Cockpit: Ride Sync Aerobar 3, CADEX basebar
Drivetrain: Shimano DuraAce Di2, 58/44 chainrings
Crank Length: 170mm
Pedals: Shimano Dura-Ace
Rear Derailleur Hanger: Shimano / standard
Saddle: Giant
Front Hydration: TriRig
Rear Hydration: TriRig

3.) Nick Thompson – 4:30:40

Frame: Cervelo P5
Wheels: Reserve 99 (front), Reserve Disc (rear)
Tires: Pirelli P Zero TLR RS 30mm (front), 28mm (rear)
Cockpit: Vision TFE Pro P5
Drivetrain: Shimano
Crank Length: 165mm
Pedals: Shimano
Rear Derailleur Hanger: Ceramicspeed OSPW Aero
Saddle: Dash Cycles
Front Hydration: X-Lab Gorilla cage
Rear Hydration: X-Lab Gorilla cage

4.) Kristian Blummenfelt – 4:31:20

Frame: CADEX Tri
Wheels: CADEX 4-Spoke (front), CADEX Disc (rear)
Tires: Continental Grand Prix 5000TT TR
Cockpit: CADEX Aerobar Three, Sync extensions
Drivetrain: Shimano Dura-Ace Di2
Crank Length: 165mm
Pedals: Shimano Dura-Ace
Rear Derailleur Hanger: Shimano
Saddle: Wove
Front Hydration: Custom single-bottle
Rear Hydration: TriRig

5.) Casper Stornes – 4:31:26

Frame: Pinarello Bolide F TR+
Wheels: Princeton Carbonworks Mach 7580 Evolution (front), Blur 633 disc (rear)
Tires: Continental Grand Prix 5000TT TR
Cockpit: MOST Cycling Components (Pinarello house brand)
Drivetrain: Shimano Dura-Ace Di2
Crank Length: 165mm
Pedals: Shimano
Rear Derailleur Hanger: Shimano / standard
Saddle: Fizik Transiro Aeris LD
Front Hydration: TriRig
Rear Hydration: TriRig

6.) Marten Van Riel – 4:31:48

Frame: Trek Speed Concept
Wheels: HED Vanquish Pro V84 (front), HED Vanquish Pro disc (rear)
Tires: Continental Grand Prix 5000TT TR
Cockpit: Speedbar
Drivetrain: SRAM Red AXS 1X
Crank Length: 170mm
Pedals: Look KEO Blade Carbon
Rear Derailleur Hanger: Standard
Saddle: Bontrager Hilo Pro Carbon
Front Hydration: BTA Rail + X-Lab cage
Rear Hydration: X-Lab Gorilla

7.) Jamie Riddle – 4:37:21

Frame: Cervelo P5
Wheels: Reserve 99 (front), Reserve Disc (rear)
Tires: Continental Grand Prix 5000S TL
Cockpit: Sync Ergonomics
Drivetrain: SRAM Red 1X
Crank Length: 165mm
Pedals: Shimano
Rear Derailleur Hanger: CeramicSpeed OSPW Aero
Saddle: ISM PN1.1
Front Hydration: X-Lab Gorilla
Rear Hydration: EZ HydroGains w/TriRig cage

8.) Cameron Wurf – 4:39:14

Frame: Pinarello Bolide F TT
Wheels: Princeton Carbonworks Mach 7580 Evolution (front), Blur 633 disc (rear)
Tires: Continental Grand Prix 5000TT TR
Cockpit: MOST Cycling Components (Pinarello house brand)
Drivetrain: Shimano Dura-Ace Di2 2x
Crank Length: 165mm
Pedals: Shimano
Rear Derailleur Hanger: Aero OSPW
Saddle: Wove V8
Front Hydration: X-Lab Torpedo
Rear Hydration: X-Lab Gorilla

9.) Matthew Marquardt – 4:39:39

Frame: Trek Speed Concept
Wheels: Princeton Carbonworks Mach 7580 Evolution (front), Blur 633 disc (rear)
Tires: Continental Grand Prix 5000TT TR 25mm (front), 28mm (rear)
Cockpit: Sync Ergonomics
Drivetrain: SRAM Red AXS 2X
Crank Length: 165mm
Pedals: Shimano Dura-Ace
Rear Derailleur Hanger: SRAM / standard
Saddle: JCOB Type 5
Front Hydration: 2x standard bottle cage
Rear Hydration: unbranded rear cage

10.) Jon Sæverås Breivold – 4:39:51

Frame: Quintana Roo V-PRi
Wheels: Vision Metron 60 (front), Vision Metron TFW Disc (rear)
Tires: Vittoria Corsa Pro Speed 28mm (front), Continental Grand Prix 5000S TR 28mm (rear)
Cockpit: TFE Team
Drivetrain: Shimano Dura-Ace Di2 2X
Crank Length: unknown
Pedals: Look Keo
Rear Derailleur Hanger: CeramicSpeed OSPW
Saddle: unknown
Front Hydration: 2 X-Lab Gorilla cages
Rear Hydration: EZ Hydro Gains

11.) Jonas Schomburg – 4:40:27

Frame: Scott Plasma
Wheels: DT Swiss ARC 1100 DICUT DB 85mm (front), Disc (rear)
Tires: Continental Aero 111 (front), Continental Grand Prix 5000S (rear);
Cockpit: Radsport Ibert
Drivetrain: Shimano 1X
Crank Length: 170mm
Pedals: Speedplay
Rear Derailleur Hanger: Ceramicspeed OSPW Aero
Saddle: Gebiomized Stride TT
Front Hydration: single BTA bottle
Rear Hydration: single bottle, non-branded cage

12.) Kristian Høgenhaug – 4:41:55

Frame: Quintana Roo V-PRi with prototype “SpeedCoat” paint
Wheels: DT Swiss ARC 1100 DICUT DB 85mm (front), Disc (rear)
Tires: Continental Grand Prix 5000TT TR
Cockpit: Aero Gain
Drivetrain: Shimano 1X
Crank Length: 165mm
Pedals: Favero Assioma PRO RS-2
Rear Derailleur Hanger: Ceramicspeed OSPW Aero
Saddle: Wove V8
Front Hydration: Canyon, Dual Bottle XLAB Gorilla Cage
Rear Hydration: TriRig two bottle system

13.) Leon Chevalier – 4:42:09

Frame: Cervelo P5
Wheels: HED Vanquish V62 (front), Vanquish Pro Disc (rear)
Tires: Continental Grand Prix 5000TT TR
Cockpit: Drag2Zero
Drivetrain: Shimano 1X
Crank Length: 165mm
Pedals: Shimano
Rear Derailleur Hanger: Ceramicspeed OSPW Aero
Saddle: ISM PN1.1
Front Hydration: Dual Bottle XLAB Gorilla Cage
Rear Hydration: EZ Gains Hydro dual carrier w/ XLAB Gorilla Cages

14.) Sam Long – 4:42:13

Frame: Trek Speed Concept
Wheels: DT Swiss ARC 1100 DICUT DB 85mm (front), Disc (rear)
Tires: Continental Grand Prix 5000TT TR
Cockpit: Evolve Ergo Monobar
Drivetrain: SRAM 1x
Crank Length: 175mm
Pedals: Shimano
Rear Derailleur Hanger: SRAM/standard
Saddle: Wove V8
Front Hydration: Single BTA bottle
Rear Hydration: Single BTS bottle

15.) Nathan Guerbeur – 4:42:28

Frame: Cervelo P5
Wheels: HED Vanquish V84 (front), Vanquish Pro Disc (rear)
Tires: Continental Grand Prix 5000
Cockpit: FastTT
Drivetrain: Shimano 2X
Crank Length: 165mm
Pedals: Look KEO
Rear Derailleur Hanger: Ceramicspeed OSPW Aero
Saddle: Gebiomized
Front Hydration: single unbranded BTA bottle
Rear Hydration: single unbranded BTS bottle

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Bold move on riding the Tempor. In TT for me it is stupid fast. But I did a duathlon as a cyclist dabbling around and that thing wasn’t very fun in transition. You would need the custom magnets modifications done.

They look quite refined, all of them now. Come a long way in three years.

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A special shoutout to Kevin and the guys riding SRAM, as the photos were clear enough for me to get the color code for crank length off of them (which made my life way easier).

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Is it just me or does it look like the Strongest Legs in Triathlon has the Worst Position of this group?

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Interesting

Looks like Wurfs bars are quite bit below the seat

And others their elbows look to be almost the same level as their seat

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That’s what happens when they go to the wind tunnel and do everything “Aero”

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I know Sam went aero testing this summer and changed his position to reduce reach (and switched to the wing dream). But visually yes he does seem to be catching a lot of air, and his T100 + Nice bike splits have not been good the last 2 months.

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Not the only one, Chevalier, Høgenhaug too and gustav seems “between”

Interesting to see gustav who was using “superman-like” position (last year ?) using a very traditional position with not so much reach (new trinity has very short reach) if we compare to others.

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Interesting that almost none of these pros ride the dual rear bottles. EZ Gains system was supposed to be faster with 2x500ml (or maybe they need 750), but everyone here is riding a single bottle and not super close to their bodies.