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Old 08-03-15 | 09:18 AM
  #27  
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rpenmanparker
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From: Houston, TX

Bikes: 1990 Romic Reynolds 531 custom build, Merlin Works CR Ti custom build, super light Workswell 066 custom build

Originally Posted by chaadster
I don't think I'm getting 28mph out of my 53/15 very often, but 24mph sounds about right. And no, I wasn't talking about just cruisin' along, but rather doing some work, so yeah, I guess if that's what you call "near time trial efforts", then that's what I was talking about. And yes, I'm often on group rides and do pace line, so that's a good point which I'd not given consideration to. But in any case, I'm *never* in the small ring (solo, cruising, or whatever) on the flat, only the 53. And yes, I can reel off many miles north of 18mph.
You're right, it is more like 26.5 according to the details you provided (53/15, 95 rpm). Here is the calculation: (53 teeth X 26.5 in X 3.14 X 95 rpm X 60 min/hr) / (15 teeth X 12 in/ft X 5280 ft/mile) = 26.5 miles/hr. At the lower end of the cadence range you mentioned, 90, it would be 25.1.
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