you're a very kind person to create such a tool.
is there a way to make it work offline so one could use it without an internet connection? just a thought -- it seems like it'd be a useful standalone program.
Thank you for your feedback! Permanent offline use could be achieved through a mobile app, I will think about it.
Why would one need that? If one makes a long bike tour into areas without internet one is hopefully prepared well enough to remember the one size for one's bike.
I guess it's mostly about convenience and reliability.