Set up the photo
Put the bike on a trainer or stable surface, place the camera side-on at saddle height, and keep the full rider and bike visible.
Online bike fit
Online bike fit from a riding photo
BikeFittr helps you run a practical online bike fit at home. Upload a clear side-view cycling photo, choose the fit workflow, and review saddle height, knee angle, reach, and posture without booking a studio appointment.
Best for
DIY bike fit at home
- Analyze a real side-view riding position from home
- Check saddle height, KOPS, cockpit reach, and full bike fit workflows
- Useful for road, gravel, MTB, city, and triathlon bike setups
- Free to start with clear next steps for measured adjustments
Run the fit workflow
Choose saddle height, saddle offset, cockpit, or full fit. BikeFittr detects key body landmarks and calculates the angles that matter.
Adjust and compare
Make small changes, save the current setup, and repeat the online bike fit until the position is stable, comfortable, and repeatable.
Common questions
Can an online bike fit replace a professional fitter?
An online bike fit is a strong first pass for saddle height, reach, and visible posture problems. Persistent pain, injury history, or complex biomechanics still deserve a professional in-person fit.
What photo works best for online bike fitting?
Use a side-view photo with good lighting, fitted cycling clothes, the crank at the requested position, and the camera level with the saddle.
Which adjustment should I check first?
Start with saddle height because it changes knee angle, hip movement, and the rest of the bike fit. Then review saddle fore-aft and cockpit reach.