2025 update ongoing: started implementing Version 4 of the Size Estimator, the main change being the bikes are aligned by the seat, not their centre. This provides a better view of the distance from the most likely place on the seat (pink column), to handlebars and foot pegs.
The basic idea is to visualize each motorcycle ergonomics. So we take a look at how the lines represent body position and some examples of the issues brought by basing it on photographs.
One cool way to use it is to compare a bike that you are used to, with a bike that you are interested in, but you have to take these limitations into account.