Launching today
Bike2Fit
Bike fitting from a phone video, side and rear view
1 follower
Bike fitting from a phone video, side and rear view
1 follower
Film yourself pedaling, side and rear. Bike2Fit measures knee, hip and back angles, KOPS and left/right symmetry in your browser and tells you what to change in cm. The video stays on your device. Free to measure, no app install.
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Hi Product Hunt! I'm the maker of Bike2Fit.
Many riders get knee or back pain from a saddle that is a few millimeters off, and a professional bike fit costs €150–300. The fitting apps I tried only film you from the side, so they miss the left/right problems that often cause the pain.
Bike2Fit measures from the side and from behind. You film yourself on a trainer with your phone, the browser tracks your joints over many pedal strokes, and the crank length turns pixels into real centimeters. You get changes like "raise the saddle 8 mm" instead of a vague angle.
The video never leaves your phone. Measuring is free; an optional AI pass with detailed explanations is €4.99 for 30 days, no subscription.
It's not a replacement for a professional fit if you're in pain, but it gets most riders close. I'd love your feedback, especially from people who have had a pro fit and can compare.