So possibly SL or SLX. Can you finger her seat tube from the bottom (bracket) and feel for light ridges? That'll indicate SLX (or possibly the later TSX though I can't remember the seatpost size).
I checked today and shoved my finger up her, no ridges, she felt pretty smooth. I took some better pics of the lugs to see if anyone can help.
I checked today and shoved my finger up her, no ridges, she felt pretty smooth. I took some better pics of the lugs to see if anyone can help.