There is a site that calculates bicycle gear ratios, so I'd like to introduce it.
It works by entering information such as gear type, cadence, chainring, cassette, and tire information to determine the corresponding speed.
As a cycling enthusiast... I wonder why these calculations are necessary...
The second useful site is... a site that calculates the appropriate frame size for me.
Select the desired bicycle type (MTB, Hybrid, Road) and enter your inseam (INSEAM), and it will guide you to the appropriate frame size.
There is always a question that comes up on cycling forums... What size is right?...
In fact, I don't think there is an absolute answer.
Since arm length... muscle mass... and usual riding distance vary from person to person...
I think the most accurate way to find the right number is to adjust it little by little...
But since you can't replace parts every time... It would be best to find the recommended size as much as possible, right? ㅎㅎㅎ