Bike sizing is not the most exciting topic to learn about, but it is one of the most crucial. Having the right bike size is not just a matter of comfort -- it can prevent injury both short and long term, and allows you to have a much better riding experience as a result.

Is it better to have a bigger or smaller bike frame?

If your arm span is longer than your height, go for a bigger frame. If it's shorter, get the smaller one. On a bigger bike, the reach to the handlebars will be longer. If you have proportionally longer arms, you are likely to feel more comfortable on a bigger frame.

Is bike frame size important?

Frame size is literally the most important thing about a bike. the best way to know if a bike fits you is to ride it. online geometry and size charts can be used as a guide if you know your measurements, but every manufacturer measures a little different and fits a little different.