Hey, I have a question relevant to checking tires.

I've noticed that my commuting tires last MUCH longer than the ones I ride on the weekends.

The tires are different (Conti Gatorskins for the commute ... Michelin Krylion, Pro4 Endurance, or (in the past) Conti 4000) on the weekends), but I've had my commuting tires last insanely long, regardless of the tire brand or model.

I think a big part of the difference is that a good part of my commute is on old, smooth concrete, while almost all of the weekend riding is on asphalt ... and some if it pretty rough asphalt at that. Thoughts?