Surly Pacer vs. Cross-Check

[Hi Ho Silver]

I can't speak to either of those bikes, but I have 25s on both of my road bikes. IMO, there's no decrease in speed, but a noticable increase in comfort. The extra volume really takes the edge off and I can run a lower pressure without the risk of pinch flats.

If they'll fit in your frame, slightly bigger tires are worth considering.

I second the above observation and suggestion. I once put 25s on my steel bike and found that it rode like a cadillac compared to the ride with 23s.