Originally Posted by
vinfix
Modern geometry is something I'm still trying to figure out, using effective top tube length, etc. for sizing. Geometry, Ride quality and fit seem much harder to ascertain with compact frames.
+100
Trek 5000 54cm, I'm all crunched up,
Trek 5000 58cm, I could put the saddle on the TT.
Felt F70 54cm, felt like a 44cm, I ended up giving the frame away as an alleycat race prize.
Marin Portofino 52.5cm, felt like a 56cm, had a good fit.
Kestrel Talon 48cm in tri-mode, fit fine, but I felt like I was on a kid's bike.
When I see a sloping top tube, I run.