1. Yes, I've used the fit calculator, my results are below, though I think the leg region is off.

2. The most comfortable bike I own is a size "51" BMC Teammachine, which has a 510mm seat tube and a 535mm (effective) top tube.

3. My 52cm Cross Check has a 547mm effective top tube and it is, frankly, too long. I had to put a -10mm shorter stem on it to make it fit. Vertically it's as comfy as my BMC, though.

4. Given the above and the below, which would be a more likely fit (STxTT), a 499STx525TT, or a 524STx540TT ? I'm thinking it would be easiest to compensate for a 525mm top tube with a +10mm longer stem.

(I'm kinda kicking the tires - again - at this point, so I'd rather not name frames just yet)


The Eddy Fit (cm)
Seat Tube Range c-c: 55.6 - 56.1 cm
Seat Tube Range c-t: 57.3 - 57.8 cm
Top Tube Length: 52.8 - 53.2 cm
Stem Length: 9.7 - 10.3 cm
BB-Saddle Position: 73.2 - 75.2 cm
Saddle Handlebar: 52.1 - 52.7 cm
Saddle Setback: 6.6 - 7 cm

The Competitive Fit (cm)
Seat Tube Range c-c: 54.4 - 54.9 cm
Seat Tube Range c-t: 56.1 - 56.6 cm
Top Tube Length: 52.8 - 53.2 cm
Stem Length: 10.8 - 11.4 cm
BB-Saddle Position: 74 - 76 cm
Saddle Handlebar: 51.3 - 51.9 cm
Saddle Setback: 5.4 - 5.8 cm

The French Fit (cm)
Seat Tube Range c-c: 57.3 - 57.8 cm
Seat Tube Range c-t: 59 - 59.5 cm
Top Tube Length: 54 - 54.4 cm
Stem Length: 9.9 - 10.5 cm
BB-Saddle Position: 71.5 - 73.5 cm
Saddle Handlebar: 53.8 - 54.4 cm
Saddle Setback: 6.1 - 6.5 cm