To know which frame size is the right one for you, please check the geometry table for our different models. They indicate the frame size, which we advise for your height.
If you have measured your height and you are between two frame sizes, you might consider taking the smaller one. In case the frame size would be slightly too large, you may not be able to adjust the saddle height correctly.
However, the best is always to test the bike such that you get a better feeling for it.