Cannondale SuperSix Evo kids bike

173cm. My posture & body shape prefers a short frame, it seems. Scherrit said I could go 5mm shorter, in a perfect world. Unfortunately, very few manufacturers make frames that short. I'm on the verge of warranting a custom frame, although I'll have to wait a few years for Parlee to do their aero frame short and tall enough...

The Cervelo S2/3 is your best bet then;

Reach: 360mm
Stack: 505mm

Cannondale;
Reach: 368mm
Stack: 513mm

However if you really want a perfect fit, there's plenty of women frame that'll fit you, such as the Scott Contessa (48cm);

Reach: 361mm
Stack: 537mm