Endurance Sports

Your partner for
peak performance

Personal coaching, metabolic testing and bike fitting for cyclists, runners and triathletes. Data drives decisions. Results follow.

26+
Years of experience
200+
Athletes
800+
Fittings
About me

Sašo Rupnik

Certified coach, INSCYD specialist and bike fitter with over two decades of experience in the world of endurance sports.

INSCYD Certified
Retül Bike Fitter
15 years of competitive experience
Full story
Philosophy

Data drives.
Results follow.

Every training session, every adjustment to the bike, every decision is based on objective data. No guesswork. No myths. Just science and experience.

01

Test

Metabolic profiling reveals your physiological limitations and potential.

02

Analyze

Data is translated into clear, individualized training zones and recommendations.

03

Train

Every workout has a purpose. No unnecessary stress, no wasted time.

04

Progress

Follow-up measurements show progress and determine the next steps.

4.2 W/kg FTP
0.38 mmol/L/s VLamax
62 % FatMax
58 ml/kg/min VO2max
Results

What athletes say

Real stories, real results.

Cycling

"Sašo completely changed my perspective on training. With data from the INSCYD test, we precisely defined my zones and now I train smarter, not harder."

TOP 10 Gran Fondo
Marko P.
Amateur cyclist, 42 years old
Cycling

"Bike fitting was a game-changer. After years of knee pain, I finally enjoy long rides. Professional approach, precise measurements."

0 pain after 200km
Ana K.
Ultra-distance cyclist
Triathlon

"Preparing for an Ironman required a scientific approach. Sašo used metabolic profiling to optimize my nutrition strategy for the race."

Sub-9h Ironman
Luka M.
Age-group triathlete
Shop

Training plans

Structured programs for different goals. Proven protocols, clear instructions.

All training plans

8-Week FTP Booster

Intensive program to raise your power threshold in a short time

29€

12-Week Gran Fondo

Preparation for long road races with optimal periodization

39€

Ironman Base Building

16-week foundation for long-distance triathlon

49€

Ready for the next step?

Start with a conversation about your goals. Together we'll figure out how I can help.