stock 92 GSr sway bar size

what’s the size of my stock sway bars? Thanks
I am trying to decide between the ST 19 mm rear sway bar and the Progress 22 mm.


14.7? are you serious? not 15 mm or 16 mm?
how about the front?

measured on the stock GS-R sway bar sitting in my room

look here for the rest of the specs.