Yes, I know my short commute is wimpy! Wish it was longer.

I should mention I ride a single speed, so I'm doing a lot of pedaling. I have a smooth seat.

Lots of great points made on this thread. I get a wear spot the goes right through the pants at, wait for it, right where the seam of my underwear is. The constant sawing motion of the pants against the seam is the obvious culprit.

I'm going to change up what i wear under my pants.