Seat Tube Length and Head Tube Length

[Krank]

The measurements are for the 2013 Bianchi Oltre XR framesets:

Seat Tube -
53.5cm (59cm frameset)
55.5cm (61cm frameset)

Head Tube Length -
180mm (59cm frameset)
200mm (61cm frameset)


The 61cm frameset has a longer ETT by 1.5cm.

Given the same rider on both bikes riding the same race / event, would the bar height/saddle gap be the same on both bikes?

Would the above longer dims on the 61cm frameset only be attributed to longer rider inseam length ??


Krank

[high_tea]

Can't see how. The bigger frame would have 2cm less seatpost showing and therefore be 2cm lower relative to the bars. Or have I missed something?

[Krank]

Thanks High Tea.

Others?

Krank

[sumgy]

Not enough info.
There will be a probable increase in both stack height and reach of the frame but how much this will also be dependent upon the ST and HT angle of each.
I would assume that the BB drop and fork length for both bikes will be the same as this could also impact on these measurements.

[Krank]

ETT -
57.5cm (59cm frameset)
58.5cm (61cm frameset)

Stack Dim (reach dim identical at 397mm) -
580mm (59cm frameset)
601mm (61cm frameset)

Head Tube Angle -
73 degrees (59cm frameset)
73.5 degrees (61cm frameset)

Seat Angle -
73 degrees (59cm frameset)
72.5 degrees (61cm frameset)

[sumgy]

Stack Dim (reach dim identical at 397mm) -
580mm (59cm frameset)
601mm (61cm frameset)

Without redoing the figures, this seems to answer your question.
The front end will be 21mm higher.