Motus Cycle Fit

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Everyone
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Everyone
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About this app

* This application is a manual calculator utility and does not automatically read or connect to any bicycle hardware.
* Use a slider to input an inseam measurement between 60 and 100 centimeters to calculate a bicycle frame size estimate.
* Type a rider name into a text field to save the current frame size calculation to a local history list.
* Swipe left on a saved frame size profile to delete it, or tap a text button to clear the entire history list.
* Use a slider to select a chainring teeth count between 20 and 60 on the gear ratio screen.
* Use a slider to select a rear cog teeth count between 11 and 52 on the gear ratio screen.
* View a calculated gear ratio decimal number representing how many wheel turns result from one pedal stroke.
* Use a slider to input a chainstay length between 380 and 460 millimeters on the chain length screen.
* View a calculated required chain link count based on the manual inputs for chainstay length, chainring teeth, and rear cog teeth.
* View an informational text screen displaying the application version and offline privacy statement.
Offline engineering calculator for bicycle frame size, gear ratio, and chain length
Updated on
Feb 22, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
  • No data shared with third parties
    Learn more about how developers declare sharing
  • No data collected
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Content rating
Everyone
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App support

About the developer
Davut Nergiz
jubranhizam@gmail.com
Türkiye

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