Originally Posted by jnbrown

I have 54cm SL8, I am 5’8” with 30.5” inseam.
saddle height is 26.5” so your legs must be longer. I have short legs and long torso.
i also have my saddle all the way forward with a set back seat post and stock 100mm stem.
they do have a zero set back post but it only comes on the 52cm and smaller frames.
In most bikes I ride a 52 because of the standover, but the SL8 has a sloping top tube so I am able to ride a 54 and the taller stack is better for me. You could certainly ride a 52 cm but it will be lower stack.