[quote="bob_summers"]a smaller frame for positional advantages? Smaller frames just give me backache!
Try a frame in the right size, horizontal top tube, no more than a fistful of seatpin showing. Look for a pic of Merckx for a good illustration!
Good advice !
Frame size is often dictated by fashion, rather than practicalities. And if anything, top tube length is more important than seat tube length.
All my frames are 54com, or thereabouts. I am 5ft 10in.
My top tubes are usually 54cm too.