Originally Posted by MichaelW
Im finding my Schwalbe Big Apples to be very speedy evn though they are 2" wide. The tread is quite fine but more significantly the carcase of the tyre is very flexible and high quality. This is what makes then efficient at city cruising speeds.
Thinner tyres can be run at higher pressure, 1.5 is a good general purpose slick with 1" and 1.25" for faster riding eg lightweight day tours, century (100km) rides, road-racing time trials.
+1 on the Big Apples, there is a slight
speed penalty, almost nothing if you pump them up to say, 50PSI, but you can run them as low as 25-30 without noticeable loss. They are very
comfy, don't seem to puncture easily, ( important point! ) and can handle easy off roading. They run about $35 each, expensive compared to some, but I think they are worth it. Don't underestimate the importance of puncture protection, the fast slicks tend to come without it, and a puncture can really slow down your total journey.