Justine Guerard


" I've done lactate tests with my trainer o fine-tune my training zones for cycling and running. The sensor could allow me to see if there's a change in my training zones and to make comparisons.
It's an additional tool that I find quite effective!



  • Winner & 2nd French championships long distance
  • 21st position 70.3 world ranking 2022
  • Podium 70.3 in Warschau & Challenge Sweden

Product Review