Old 11-28-16, 07:36 AM
  #25  
wphamilton
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It's really hard to say unless you do a time trial or something. Just looking down at the speedometer now and again is deceptive. There's always a small grade, some wind, or it's faster or slower than I could keep up for longer. For what it's worth though, when I'm out riding with a smattering of lights (not one every block), the "cruising speed" I see in glances is 1.5 to 2 mph faster than the overall speed of the trip. That's also dependent on a lot of variables, but it's surprising how many different people say the same thing so it's a pretty general rule of thumb.
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