should i cut the px aero bars at the narrow or wide end of the s bend extensions???
You can do it either way, depending on where you want the bends to be. Most cutt off the little end though and rotate them about 45 degrees as they tend to be a little far apart if the very shallow S-bend is straight vertical.
I went with some from each end, but I’m not sure it really makes any difference.
I cut mine at the larger end, thereby keeping the bend out toward my hands. I also modified mine a bit by building “wings” out of plate aluminum to widen the elbow pads a bit, so I could keep the extensions straight up, rather than rotate them inwards like Rroof mentioned.