Chris Z The Wheelman wrote:

---snip---
If you regularly ride a good portion of chip & tar (or as I like to call
it "40 grit") pavement I would seriously consider tires no less than
25mm wide.
---/snip---

Is this due to the perception of increased comfort, or because there is
an increase in efficiency (decrease in rolling resistance) due to the
fatter tires?

SYJ