FitInspector: Bike Fit by Numbers

Field notes

FitInspector combines required basics—height, inseam, and cycling discipline—with optional measurements and riding preferences. Its explanations name the formulas behind two outputs: saddle height uses inseam × 0.883, while reach uses torso length × 0.48 plus arm length × 0.32. The site distinguishes these calculated starting points from professional fitting, and says photo-based pose detection remains in the browser while only resulting body-position numbers are sent to its server.