Measuring Your Inseam
The most important measurement when sizing a bicycle is your inseam length - essentially the inside length of your pant leg from crotch to floor. Since this is the primary measure used to calculate your best bike size, don't base your inseam simply on your jeans size. You need to be more precise. Here's how to do it:
- Stand with your back against a wall.
- Spread your feet 6-8" apart on a hard, smooth surface.
- Place a book between your legs and up against the wall, spine up; raise it until snug against your crotch (this mimics your bike seat).
- Have another person measure from the top of the book (spine) down to the floor.
Here is a link to a video that explains the process.