Choosing new bike size based on old bike.
Now I ride a 58 cm Trek with the following geometry (in mm) :
Seat tube: 553
Head tube: 190
Frame reach: 391
Frame stack: 596
"Effective top tube": 573
Seat angle: 73 deg
Head angle: 73.8
I ride it with a 90 mm stem (short arms!), +10 degrees, 1 cm spacer.
Saddle height to centre of BB is 81 cm.
For my new bike, I can only choose between 57 and 59 cm:
Seat tube: 570/590
Head tube: 163/180
Frame reach: 394/397
Frame stack: 563/581
Top tube: 560/575
Seat angle: 70/70 deg
Head angle: 73/73.5 deg
Before you ask, I am ordering it by mail so I can't really try it out. I understand that it's supposed to be a "racier" geometry, it's a lot more money as well!
So, which of the two should I choose? And with what stem and spacers? Any suggestions? Thanks!