In fiddling with my (self-evaluated) time trial bike fit, it seems that I have a choice: rolled forward hips and flat back at the cost of comparatively square (and broad) shoulders, or roll the shoulders forward and down into a narrower position but which also results in a slightly more rounded back. Short of wind tunnel data, any guess as to which is more aero?
The forward shoulders approach also makes me want more reach--in that scenario would it be better to extend armrests and drop the bars (presently 12 cm below the saddle) or to move my saddle back? As it is I'm in a semi-slammed back position on a road frame--about 3.5 cm behind the bb (kind of short femurs, this one).
Sorry if this is too vague and general to be of use. Thanks for any opinions.
The forward shoulders approach also makes me want more reach--in that scenario would it be better to extend armrests and drop the bars (presently 12 cm below the saddle) or to move my saddle back? As it is I'm in a semi-slammed back position on a road frame--about 3.5 cm behind the bb (kind of short femurs, this one).
Sorry if this is too vague and general to be of use. Thanks for any opinions.