Find Your Bike Fit Starting Point

Enter two measurements and get a science-backed estimate for your saddle height and stem reach. No guesswork, just a smarter setup.

Quick Fit Calculator

cm

Measure from floor to crotch while standing barefoot, feet 15 cm apart.

cm

Measure from acromion (bony shoulder tip) to the center of your palm with arm extended.

How the Numbers Work

Saddle Height Formula

We use the well-known LeMond method: multiply your inseam by 0.883. This gives the distance from the center of the bottom bracket to the top of the saddle, measured along the seat tube. It's a proven starting point used by fitters worldwide.

Stem Reach Logic

We estimate reach by taking your arm length and subtracting a torso compensation factor derived from your inseam. The result suggests a comfortable stem length so you're not overstretched or cramped in the cockpit.

Dial It In: Beyond the Numbers

  • Listen to your knees. If you feel pain in the front of the knee, your saddle might be too low. Pain in the back often means it's too high.
  • Check your reach. When riding on the hoods, your shoulders should be relaxed with a slight bend in the elbows. If your arms are locked straight, the stem is likely too long.
  • Saddle fore-aft matters. With the cranks horizontal, a plumb line dropped from the front of your kneecap should pass through the pedal axle. Adjust saddle rails before changing stem length.
  • Cleat position first. Always set cleat position and saddle height before fine-tuning reach. The order of operations in bike fitting is crucial.
  • Re-measure seasonally. Flexibility, core strength, and riding style change. Revisit your fit every few months or after any injury.