Saddle Height Calculator
A correct bike fit starts with your saddle. Use the industry-standard LeMond method to find your starting point.
How to measure: Stand barefoot with your back against a wall. Place a book between your legs as high as comfortable (mimicking a saddle). Measure from the top of the book to the floor.
Why Saddle Height Matters
Saddle height is the single most critical adjustment on your bike. If it's too low, you compress your knee joint (patellofemoral compression), losing power and risking injury. If it's too high, you overextend, causing your hips to rock and straining your hamstrings and lower back.
What is the LeMond Method?
Developed by three-time Tour de France winner Greg LeMond and his coach Cyrille Guimard, this formula is considered the "gold standard" starting point for bike fit. It calculates saddle height based on a percentage of your inseam length.
Formula: Inseam (cm) × 0.883 = Saddle Height (cm)
This height is measured from the center of the bottom bracket (the crank axle) to the top of the saddle, following the angle of the seat tube.
How to Measure Your Inseam
Do not use your pant leg length (inseam). Cycling inseam is measured from the floor to your pubic bone.
- Stand barefoot on a hard floor with your back against a wall.
- Place a hardback book (or a level) between your legs, with the spine facing up.
- Pull the book up firmly into your crotch, mimicking the pressure of sitting on a saddle.
- Mark the top of the book on the wall (or have a friend measure).
- Measure the distance from the floor to the top of the book.
Fine Tuning Your Fit
The LeMond method is a starting point, not a universal law. You may need to adjust by ± 5-10mm based on:
- Cleat Position: If your cleats are further back, you may need a slightly lower saddle.
- Pedal/Shoe Stack Height: Thicker soles or pedals might require adjustments.
- Flexibility: Riders with tight hamstrings often prefer a slightly lower saddle.
- Crank Length: If you use shorter cranks (e.g., 165mm vs 172.5mm), you will need to raise your saddle to compensate.