A proper Bike fit helps people with pain or discomfort and can optimise efficiency. A Triathlon bike fit considers comfort, aerodynamics, nutrition storage, the swim before and the run after, then goes on to apply that to 20/40/90/180km distances and tweak accordingly.
A common conversation with Triathletes might go something like this:
“You should get a bike fit”
Triathlete: “Oh, yeah, I’ve had a bike fit”
“You should get a triathlete’s bike fit…you’ll race faster”
Triathlete: (Gets a Triathlete bike fit and goes faster)
Having someone experienced in triathlon do the fit helps further – first hand experience is irreplaceable.
4 Top trends
1. Bottle Down Your Top: Fast….but banned
The 2025 Ironman racing rules can be found here
(Photo: Triathlete.com)
2. High Hands can be faster…
(Photo: Ironmantri)
But not always…
(Photo: FinisherPix)
3. Above Arm Bottles – if you’re delicate in your placement and test it! Unfortunately it can also be slower.
(Photo: Ironmantri)
4. Shorter Cranks…Come on Pogi, the triathletes have been doing this on mass since 2018. It reduces hip flexor shortening, improves running off the bike, allows you to get into a lower more aero position.
(Photo: Getty Images)
Things to seek in a triathlon bike fit
1. Understand your past and current injuries
2. Fit to your current race schedule / distance and course
3. Assess your body off the bike
4. On the bike fit
5. Advice for strength and mobility where relevant
6. Advice for on bike nutrition storage and equipment
Don’t just put out more watts, put them to better use (less drag).
