Does this wear pattern on my shorts indicate an issue with my position on my road bike? My last three pairs of bib shorts have all worn out in exactly the same place (see picture). The latest pair started wearing after about 5 rides. I average about 100 miles a week. Do you think my position is off? I feel like my sit bones are in the right place on the saddle when I'm riding and I don't have any discomfort. I've had a bike fit. The shorts are all high quality (at least expensive) Specialized and Pearl Izumi.


Bike: 2013 Specialized Roubaix SL4 Expert Compact
Saddle: Body Geometry Toupé RBX Comp



Here is a picture of the saddle and the clamp from above. I'm holding a level to show how the clamp extends past the saddle. I think that is what is causing the wear.
It looks like your saddle is positioned quite far back, relative to the post.

Swapping the seatpost for one with more layback (offset) should allow you to keep the same saddle position relative to the bike but clamping the rails further back, where the saddle is wider.

Clamping further back on the rails may also reduce the risk of bending the rails.