Measurements
Measurement Guide
Accurate measurements improve fit precision. Required values are enough to start; optional values improve cockpit and stability recommendations.
Preparation
Before You Start
Use this checklist before you start measuring.
Measure barefoot on a hard, flat surface.
Take each measurement twice and use the average.
Ask someone to help for torso, arm, shoulder, and femur.
Use consistent units: centimeters except foot length in millimeters.
Measurements
Work step by step
Start with the required fields, then add optional measurements for a richer fit profile.
Height
Required • Unit: cm • Typical range: 130-210 cm
Tools
Tape measure • Wall • Flat floor
How to measure
- Stand barefoot with heels against a wall and look straight ahead.
- Keep your back and hips lightly touching the wall.
- Place a book flat on your head, mark the wall, then measure to the floor.
Common mistakes
- Measuring while wearing shoes.
- Tilting your head up or down.
Inseam
Required • Unit: cm • Typical range: 55-105 cm
Tools
Tape measure • Hardcover book • Wall
How to measure
- Stand barefoot with feet shoulder-width apart and back against a wall.
- Pull a hardcover book up firmly into the crotch to simulate saddle pressure.
- Measure from the top edge of the book straight down to the floor.
Common mistakes
- Holding the book loosely.
- Measuring from the wrong edge of the book.
Torso Length
Optional • Unit: cm
Tools
Tape measure • Helper (recommended)
How to measure
- Stand naturally in a neutral posture.
- Find the top of your hip bone (iliac crest) and shoulder point (acromion).
- Measure straight-line distance between those two landmarks.
Common mistakes
- Measuring while hunched forward.
- Using different body sides for start and end landmarks.
Arm Length
Optional • Unit: cm
Tools
Tape measure • Helper (recommended)
How to measure
- Relax your shoulders and extend your arm slightly forward.
- Measure from shoulder point (acromion) to the wrist crease.
- Repeat once and average both attempts.
Common mistakes
- Locking the elbow aggressively.
- Measuring around the curve instead of straight-line distance.
Shoulder Width
Optional • Unit: cm
Tools
Tape measure • Helper
How to measure
- Stand upright with relaxed shoulders.
- Measure from one acromion point to the other across your back.
- Keep tape level and straight.
Common mistakes
- Measuring chest width instead of acromion-to-acromion.
- Pulling tape too tight around the body.
Femur Length
Optional • Unit: cm
Tools
Tape measure • Helper
How to measure
- Stand naturally with knees unlocked.
- Locate the hip joint landmark (greater trochanter).
- Measure from hip landmark to center of the knee.
Common mistakes
- Guessing the hip landmark location.
- Measuring to kneecap edge instead of knee center.
Foot Length
Optional • Unit: mm • Typical range: 220-320 mm
Tools
Paper • Pen • Ruler
How to measure
- Stand on a sheet of paper wearing thin socks.
- Mark heel and longest toe.
- Measure between marks in millimeters.
Common mistakes
- Measuring while seated (load is different).
- Using centimeters when input expects millimeters.
Recheck
When To Re-Measure
Repeat your measurements when the quality of the input is uncertain.
If two attempts differ by more than 1 cm (or 5 mm for foot length).
After major body changes, injury recovery, or flexibility improvements.
If recommendations feel inconsistent with your on-bike comfort.
Next step
Ready to use your measurements?
Save your profile and start a fit session to get your personalized setup.