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@J0nathan
The next thing for me to decipher is which size to get. One of the bikes it is replacing (the one that I want to recreate the riding position from) is:
Tonic Fabrication Supernaut 'Medium'
Effective TT CTC: 550
ST CTT: 500
HT Length: 132
HT Angle: 74
ST Angle: 74
Compare with:
Dolan Pre Cursa 52
Effective TT CTC: 535
ST CTT: 520
HT Length: 120
HT Angle: 73
ST Angle: 75
Dolan Pre Cursa 54
Effective TT CTC: 545
ST CTT: 540
HT Length: 140
HT Angle: 73
ST Angle: 75
Hmmm... both sizes of Pre Cursa have a longer seat tube, but the Tonic has quite compact geo in comparison. The 54 Pre Cursa is closer to HT and TT measurements of the Tonic so I think it will have to be that one.