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TrueLine Bikefit Studio — home Book your fit
Inside the TrueLine studio: a rider on the fit jig, measurement tools and screens around

Motion-capture bike fitting · Kraków

Fit is the fastest upgrade

Road and TT fits measured in millimeters, not guesses. Ride longer, hurt less, go faster.

How it works

01

Book your slot online

Pick a fit tier, choose a time, and pay online. One rider per slot — your session never gets cut short.

02

Ride while we measure

Interview, off-bike flexibility screen, then motion capture while you pedal. Every change is measured, not eyeballed.

03

Leave dialed, on record

You ride out with the position set, a written fit report, and a free 30-day recheck on Performance and Aero fits.

Three fits, one method

Every tier is measured the same way — they differ in how deep we go, not how carefully.

See full comparison →
Essential Fit

Essential Fit

The fundamentals, measured

US$120 · 2h

Interview and injury history, saddle height and setback, cleat setup, and a cockpit check. The right fit for a new bike or a newer rider who wants the fundamentals dialed.

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Performance Fit
Recommended for most road riders

Performance Fit

The full road fit, on camera

US$220 · 2h 30m

Everything in Essential plus an off-bike flexibility screen, video motion capture, full contact-point optimization across saddle, bars, and cleats, a written fit report, and a free 30-day recheck. The recommended fit for most road riders.

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Aero / TT Fit

Aero / TT Fit

A position you can actually hold

US$320 · 3h

Everything in Performance plus aerobar and pad setup, extension length and angle, aero position testing against sustainable power, and front-end stack tuning. For TT and triathlon bikes, fitted to the rules you race under.

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The difference is millimeters

A saddle 8mm too high. Cleats 4mm too far forward. Reach 15mm too long. None of it is visible in a mirror, and all of it shows up an hour into a ride — as numb hands, a burning knee, or an aero position you can't hold.

We measure you off the bike, capture you on it, and change one thing at a time until body and bike agree. Every decision is written down in a report you take home.

See the full process
The TrueLine analysis screen: a rider's skeletal overlay with live joint angles, power, and cadence readouts

Rider stories

All stories →

The studio

What riders say

“He moved my saddle 8mm and my cleats 3mm. That sounds like nothing. My knee pain of two years is gone.”
Nuria Soler · Performance Fit
“I came for free speed and left with a position I can actually hold for a half-distance tri. The recheck a month later took ten minutes, everything still felt right.”
Ben Carter · Aero / TT Fit
“New bike, one 90-minute session before my first big ride. Every contact point just works and I have the numbers written down for the next bike.”
Pau Riera · Essential Fit
Map of Kazimierz, Kraków, with the studio marked on ul. Mostowa 8 near the Bernatka footbridge 📍 ul. Mostowa 8, 31-061 Kraków — open in Maps

Find the studio

Address
ul. Mostowa 8, 31-061 Kraków
Hours
Tue–Fri 10:00–16:00
Bring
Your bike, your shoes, and the kit you actually ride in. We provide everything else.
Book your fit