KHS Flite 100 sizing

Can anyone hook me up with some info on the sizing of KHS Flite 100s? The geo makes the 57cm seem more like an XL/58cm, but it’s a bit hard to know where they’re measuring the TT from. Is a 57 going to be right for rider who usually rocks an XL? Or is the 60cm a better bet?

Cheers heads.

bought one recently to race track…
im just shy of six foot and im riding the 54cm quite comfortably. Wouldn’t wanna go any bigger…

Cheers, I reckon the 57 will be the go.