Oh! Oh! Oh! I love my thinner tires!
A few months ago I bought a Specialized Expedition Sport "comfort bike" --- knobby, 2 inch wide tires on it. My average speed, on flats, was 10mph at best.
I got the new tires, 1 1/2 inch wide, smooth tires, with tread that reminds me of worm-wood on them. My average speed now is 11.7mph. BUT that's because now I go on hills, and those 30+mph descents just don't fix a 4mph uphill climb... Most of the time, when I'm on uncrowded flats, I tend to run around 14-15mph now.
Granted, I'm stronger than I used to be, but those tires made an instant difference. It's not just speed, but my endurance is better too -- I can ride farther than I did with the knobby tires too! -- DH believes in "my bike ladies" now and is truly afraid of you all!! (it's the effect on his wife that scares him most!)
Karen in Boise



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