Old 06-05-21, 04:20 AM
  #20  
AnthonyG
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There are SOO many things going on with these two bikes and the only way to get on top of what's going on is to carefully seperate out different issues yet the problem I see is that you are conflating them altogether.
The only way you can hope to get on top of it is to know that the centre of the BB is the one and only zero, zero point that everything else is measured to.
I don't want to say that your bad at measuring yet at this point I would have to have the bikes in front of me and measure them myself to know.
Without having the bikes in front of me, I cant say this for certain, yet my expectation is that you would need to make quite an effort (probably getting yourself a special set back seatpost) in order to get the saddle on the smaller frame in the same position as the saddle on the larger frame and at this point I don't think you have.
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