Triathlon and time trial bike fit at the Viviers-du-Lac practice
Bike fitting · triathlon and time trial

Triathlon and time trial bike fit

The aerobar position has to reconcile three things that pull in opposite directions: aerodynamics, power and the ability to run afterwards. Many triathletes adopt a “pro” position they cannot hold for more than 20 minutes, or that they pay for in their lower back on the marathon. I am a triathlete and an osteopath: the bike fit looks for the most aero position your body can really hold over the distance.

1.5 to 2 hoursBetween Aix-les-Bains and Chambéry
What changes

What the bike fit looks at for triathlon and time trial

  • Closed hip angle compatible with your mobility, tested while pedalling at race intensity
  • Aerobar height and width, elbow position, forearm angle
  • Saddle forward position and choice of a saddle suited to a pelvis tilted forward
  • Bike-to-run transition: a position that spares the hamstrings and the lower back
  • On a road bike with aerobars: compromise between the two positions

What to bring: your TT bike or your road bike with aerobars, your shoes and cleats, your triathlon kit.

Typical pain

AreaCommon postural cause
Lower backhip angle too closed for your mobility, pelvis in posterior tilt
Perineumroad saddle used in a forward-tilted position
Neckhead raised too high to see the road, aerobars too low
Shouldersaerobars too narrow or too long

I treat the pain with osteopathy if needed, then I correct the position so it does not come back. Osteopath for cyclists.

Price

How much it costs

Full TT or aerobar bike fit €280, up to 2 hours, cleats included. Road bike as well on the same day: + €60.

All formats, with what they include, are on the Prices page. Online booking for every service.

Book a bike fit

Where

Practice in Viviers-du-Lac, between Aix-les-Bains and Chambéry, free parking. Local pages: Chambéry, Aix-les-Bains, Annecy, Albertville, Grenoble, Lyon.

Other disciplines

road bike · gravel · MTB · e-bike

Reviews
★★★★★

« I went to Gaspard for a bike fit and I was not disappointed! Very calm, composed, attentive, takes his time, excellent advice (a saddle model better suited to my body), ultra-professional equipment. Available afterwards by email or message for questions, very responsive. I went back to see him after the changes he had recommended: there is real follow-up. I highly recommend him, with my eyes closed! »

Loïc E. · Bike fit · October 2026
★★★★★

« Great work by Gaspard! A few hundred kilometres after he reviewed my bike setup and gave me advice on pedalling properly, no more knee or back pain. The way to go if you want to ride for hours without trouble. »

Nico D. · Bike fit · September 2025
★★★★★

« I went to see Gaspard because I had been suffering from pain in my right knee for over 2 years, especially on the bike. After one osteopathy session and a bike fit, the pain has completely gone. Impressive result, the pleasure of riding back in a single session. Very professional and effective work. I highly recommend him! »

Victor G. · Bike fit · July 2025

Google rating: 5/5 from 69 reviews · Reviews published on Google and Doctolib. Read all reviews. Quotes translated from French.

FAQ

Triathlon and time trial bike fit: your questions

Why does the TT bike fit cost more?

It takes longer: the aerobar position has more variables (height, width, length, angle, saddle forward position) and has to be tested at race intensity to check that it can be held.

I am preparing for an Ironman or a half, when should I do the bike fit?

At least 8 weeks before the event, to give you time to adapt to the settings on your long rides and your bike-to-run sessions.

Do you do bike fits for triathlon on a road bike?

Yes. Without aerobars, it is the standard road bike fit at €250. With clip-on aerobars, €280, because both positions have to be set.

Treatment room at the Viviers-du-Lac practice

Time to book. Athlete or not, I start by understanding where the pain comes from before treating it.

Appointments Monday to Saturday, 8 am to 8 pm, in Viviers-du-Lac. Book online any time or call 06 13 66 09 55.

Book a bike fit Prices