Trying to figure out what size of frame my wife should get but struggling to find a sizing guide on the PX website. Is there one?

Possibly. Most of the frames have a sizing/geometry tab on the web page. Now and again they appear to not feed the web monkeys enough and the tabs are either missing or blank on the odd product.

Isn’t the easy way to size any frame simply to give STW your measurements and then buy the size bigger than they recommend?! This way you end up with a frame that is less “chuckable” but does actually fit you. It’s worked for me in the past!

Found the sizing guide sneakily hidden under the geometry tab. Might make moe sense if it was called ‘geometry and sizing’.