My commuting tires are Maxxis Re-Fuse, $45 at MEC. I run them at 130 PSI, (they come as a X23 or X25). Lots of gravel, never a flat (they have a kevlar belt, silkworm anti-flat lining, plus yadayadayada thisthaththeother). They are a slick with a slight thread which is good for offroad climb traction. I always ride at or near max pressure. If road conditions are so bad, I would need to run them at lower pressure, that's my cue that the road is not safe for a road ride (I have canti rim brakes) and I take the MTB hardtail instead.
Not weight-weenie approved!
^Yeah what is with shipping being charged now?
Anyway, went for a real ride on the 25 Pro4s today. 2200m over 107.5Km. Longest ride ever, most elevation gain on the road bike. Started the ride at 10am so I knew I'd have to deal with the heat.
Ran the tires at 101psi
Unless you're light, run your tires at or near maximum pressure to avoid pinch flats (which will happen quite easily on underinflated road tires).
For winter tires, the Continental Gatorskin have a good reputation. Or the tires that Duncan posted as if he and Fast Orange like them that's a good recommendation (and the price is good to boot).
The Vittoria Corsa has a pretty low rolling resistance (according to a review I've linked below), but like lacks grip because of that.
Tire reviews, if that matters:
CRC sometimes has good pricing on tires with a good selection.
It is easy to dodge our responsibilities, but we cannot dodge the consequences of dodging our responsibilities.
- Josiah Stamp
Every time I see an adult on a bicycle, I no longer despair for the future of the human race.
- H.G. Wells