# Pedalyze

> Pedalyze is an AI-powered bike-fit analysis tool. Upload a side-on photo or video of you on your bike and get joint angles (knee, hip, torso, elbow, shoulder) and KOPS measured against reference ranges for three fit styles (road/endurance, comfort/upright, and TT/triathlon), with pass/warn/fail verdicts, a weighted Fit Score, and adjustment advice.

Pedalyze analyzes two crank positions: 6 o'clock (knee, hip, torso, elbow, shoulder angles) and 3 o'clock (KOPS offset, torso, elbow). All measurements assume a level bike and a camera perpendicular to the rider's sagittal plane; capture-quality checks reject photos that do not meet this.

## Guides

- [How to take bike-fit photos](https://pedalyze.bike/en/guides/how-to-take-bike-fit-photos): camera setup and capture requirements for accurate analysis
- [Bike-fit knee angle](https://pedalyze.bike/en/guides/bike-fit-knee-angle): target knee extension ranges and how saddle height affects them
- [KOPS explained](https://pedalyze.bike/en/guides/kops-explained): knee-over-pedal-spindle measurement and its limits
- [Road bike fit angles](https://pedalyze.bike/en/guides/road-bike-fit-angles): reference ranges for road and endurance positions
- [TT bike fit](https://pedalyze.bike/en/guides/tt-bike-fit): reference ranges for time-trial and triathlon positions

## Tools

- [Saddle height calculator](https://pedalyze.bike/en/tools/saddle-height-calculator): saddle height estimate from inseam using the LeMond method
- [Saddle setback calculator](https://pedalyze.bike/en/tools/saddle-setback-calculator): saddle fore/aft position and KOPS setback from saddle height and effective seat angle
- [Stem length calculator](https://pedalyze.bike/en/tools/stem-length-calculator): reach and bar-height change between two stem and spacer setups
- [Stack and reach calculator](https://pedalyze.bike/en/tools/stack-and-reach-calculator): compares the handlebar position of two bikes from frame stack, frame reach, and cockpit parts
- [Bike frame size calculator](https://pedalyze.bike/en/tools/bike-frame-size-calculator): frame size estimate from rider height and inseam
- [PSI/bar converter](https://pedalyze.bike/en/tools/psi-bar-converter): tire pressure unit conversion

## About

- [Home](https://pedalyze.bike/en): product overview and demo
- [Pricing](https://pedalyze.bike/en/pricing): free tier and one-time Fit Session pass
- [Pricing (machine-readable)](https://pedalyze.bike/pricing.md): tiers, prices, limits, and included features as plain markdown
- [FAQ](https://pedalyze.bike/en/faq): common questions about accuracy, privacy, and usage
- [About](https://pedalyze.bike/en/about): who makes Pedalyze

## Notes

- The site is available in English, German, Spanish, French, Italian, Dutch, and Portuguese (path prefix /en, /de, /es, /fr, /it, /nl, /pt).
- KOPS uses the ankle as a pedal-spindle proxy, so it reads slightly rearward of a true plumb-line measurement. This is a documented approximation.