Originally Posted by
Nessism
Most frames fall into a fairly tight range of about 6.8 to 7.5 (road frames.) As Andy says a pedal strike is a big worry driving that characteristic. My preference is towards a little more drop than some use but lug angles can be a factor if you get too far out of the norm.
This range is good to note. I wish I could adjust my road bike downstairs and observe the difference. Also good to note that lug angles can play a role outside the norm.