Stem length/angle differences - compact and standard frames

[Buzzinonbikes]

Hi all,

Sorry if this has already been asked but I can't seem to find much info on the subject...
I was wondering what anyone's experiences are in regards to stem length when using different geometry frames, such as a sloping top tube compact to a flat traditional frame?

Reason I ask is I am building up a commuter/light tourer based around a Dolan Preffisio with traditional geometry and on my current best bike I have a compact frame. In theory the seat to handlebar drop will be less on a traditional geometry, so does this mean that this needs to be compensated for with a longer stem length to stretch you out more? Or have I got it all wrong? Is this why you traditionally see quill stems with flat top tubes?

Any experience would be much appreciated!

 

[Rob3rt]

The seat to handlebar relationship is no different on a compact/sloping geometry frame to a traditional geometry frame. Just more seatpost is showing.

 

[Buzzinonbikes]

Aaaah good info thanks. That makes this much easier! Cheers