As a cyclist you need to know your bike. In order to get the most out of your gears you need to try with different combinations of chain rings, cogs, wheels and tire sizes which is a time consuming task.
'GearRatios' is an app designed to help you find matching combinations in your bike or any components offered by manufacturers, so that you can switch to a different setup maintaining your speed within a ten percent margin.
Choose different sizes and experiment with the results so that your next ride becomes easier.

Fully redesigned to work for iOS 15 and WatchOS 8.0. It includes and 'in-App purchase' option the unlock the 'Trial' version which consists of the same fully featured app with a limit to the 'search/find' algorithm of 3 times, after which the app resets to defaults and shows a 'Trial' screen to either 'Purchase' or 'Continue' for another 3 times.

Available for 'iPhone' and 'Apple Watch'.