Roth Bike Fit
A free bike fitfor every rider.
When your bike feels uncomfortable or hard to settle into, use your phone to find one measured change to try next.
How it works
Record. Adjust. Ride.
Roth turns a repeatable phone recording into a clear change you can test on the road—and keeps your starting position easy to restore.
Original Roth visual · demonstration only- 01Set up
Know the room is ready.
Start only when your bike, trainer or rollers, phone, light, and full-bike view are ready.
- 02Record
Follow one direction at a time.
Record the first side, repeat the same setup, then finish with a guided front view.
- 03Adjust
Make one clear change.
See what comes first, why it matters, how much to test, and the exact setup you can return to.
- 04Ride
Learn from real rides.
Check the change indoors, then record what happens on a short, medium, and normal ride.
Screens show sample information, not customer results. Private results remain limited to supported cases while delivery checks finish. Existing riders can sign in to view saved fits and manage their account. New fitting accounts are not open yet.
ROTH ON YOUR PHONE
The easiest way to complete your fit is coming soon.
Use the Roth app to follow camera setup, record your position, review one adjustment at a time, and keep every fit with your account.
Mobile app detailsDirect download links will appear here as soon as each public store listing is approved.
Community-powered bike fit
A free bike fit, built with riders.
Use Roth at no cost. If you choose, de-identified fit comparisons can help make future guidance more useful for the whole riding community.
No trial, subscription, credit card, or paid upgrade is required.
Your recordings and results are private unless you make a separate choice.
De-identified comparisons can improve future guidance only when you opt in.
Ready to stop guessing at your fit?
Start with three setup questions, then continue with your free bike fit.