Thread: "Effective Top Tube Length"?
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Old 11-12-15 | 06:42 PM
  #19  
fietsbob
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Originally Posted by The Golden Boy
What's "reach?"
In design specs you run a plumb line down to the axis of the BB..

'Reach' is from there forward, 'Setback' is from that point rearward, dividing the top tube length...
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