Thread: Is your top tube level?
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Old 02-09-11 | 06:05 PM
  #54  
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Barrettscv
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Originally Posted by TromboneAl
OK, got it.

Here's the next question: How do you measure frame size if the TT is sloped?
“Virtual” top-tube is the same as “Effective” top-tube which is equal to “Horizontal” top-tube.

“Actual” top-tube is the length of the sloping top-tube.
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