BikeFit: Saddle Angles

BikeFit: Saddle Angles is your offline-first interactive bicycle fit calculator, knee flexion analyzer, and saddle setback guide. Designed for road cyclists, gravel riders, mountain bikers, and triathletes, BikeFit turns complex biomechanical fitting into a clear, stress-free routine. Interactively adjust virtual joint angles, rider inseam measurements, and saddle heights on a visual 2D canvas, calculate optimal knee extension ($25^\circ - 35^\circ$) at the bottom stroke, and prevent joint pain without needing an active internet connection. Key Features and Cycling Utility Tools Interactive SpriteKit Bike & Joint Canvas - Touch-to-Adjust Joint Angles: Drag hip, knee, and ankle pivot points to visualize kinematic alignment and pedaling efficiency. - Saddle Height & Setback Scaler: Compute exact seatpost extensions and fore-aft adjustments based on LeMond and Holmes formulas. Knee Flexion…