Originally Posted by
Scooper
I realize I'm in the minority here and don't want to debate the issue since the pros and cons of setback vs. straight seatposts and STA is a lively discussion topic among even the best framebuilders. Read this Velocipede Salon thread for lots of opinions from some of the best designers and builders in the business:
http://www.velocipedesalon.com/forum...s-18675-2.html
I really think it's a style thing. This is translated from German, so it reads a little awkwardly.
http://www.bikefitting.com/English/T...SeatAngle.aspx
Regardless, whatever works for you is right.
No it isn't a style thing. Its a wheelbase, chain stay length, tire clearance, frame weight, bike handling thing.
Setback allows bigger riders on smaller wheelbase frames with good fore/aft weight distribution.
If I went custom which I never would since just about every geometry permutation is available off the rack, I would design the
frame for a 25mm setback seatpost and minimum 1-2 cm clearance to the back tire.