Hi Ian,

Thank you very much for your detailed reply!

I followed your recommendation and got a dynamic fit yesterday which I thought was a great experience. It did stir up some new questions that I'll outline below and in the attached chart.

The SLX (Size "M" frame) I ordered is being held for me for a few more days. Currently, there are no other SLX bikes available. I thought it might be good to see how a CF frames would fit as well.

My size and saddle height is indeed telling me that I can only (!) go for frame size 'M', at least for the SLX frame:

My Height: 183cm
CF 7 & 8 M 174 - 186 (Mid: 180) - good / CF 7 & 8 L 186 - 196 (Mid: 191) - L appears too large
SLX M 178 - 186 (Mid: 182) - good / SLX L 186 - 196 (Mid: 191) - L is too large
Bike Fit -> Saddle Height (Bracket-Saddle): 772
CF7 M 696 - 846 (Mid: 771) / CF7 L 730 - 880 (Mid: 805) - L would still be Ok
CF8 M 706 - 856 (Mid: 781) / CF8 L 740 - 890 (Mid: 815) - Both L & M workable.
SLX M 735 - 855 (Mid 795) / SLX L 775 - 895 (Mid 835) - L is too large

I hadn't realized that CF7 and CF8 have different measurements at first. Anyway, here is where my measurements fit into the ranges of possibilities of the different frames:
My Bike Fit Pad Stack 685
CF7 M 581 - 691 (Mid: 636) / CF7 L 619 - 729 (Mid: 674)
CF8 M 629 - 723 (Mid: 676) / CF8 L 663 - 757(Mid: 710)
SLX M 581 - 691 (Mid 636) / SLX L 619 - 729 (Mid 674)

My Bike Fit Pad Reach 460
CF7 M 408 - 461 (Mid: 434.5) / CF7 L 430 - 484 (Mid: 457)
CF8 M 416 - 495 (Mid: 455.5) / CF8 L 448 - 527 (Mid: 487.5)
SLX M 408 - 463 (Mid 435.5) / SLX L 430 - 484 (Mid 457)

Therefore:
- CF7 M: Not good. Not enough room to go forward.
- CF7 L: Good. The saddle will be just slightly low but reach and stack are right in the middle.
- CF8 M: Good. Right in the middle for all values.
- CF8 L: Not good. Not much room to go lower.
- SLX M: Not good. The saddle height is perfect but there's no room to move forward (or higher/will need a high spacer which I'm guessing isn't ideal)
- SLX L Not good. Pad Stack & Pad Reach look great, but the saddle height would be too low for me.

I have no prior experience here. And perhaps this is overkill or I'm embarrassing myself because all this is completely off. It certainly seems strange. But it looks to me SLX isn't really workable but either the CF8 'M' or the CF7 'L' would work just fine.
CF8 M is listed as out of stock until 2024. Leaves me with CF7 L?

Other pieces of info from the bike fit:
- I was advised to change the crank length to 160mm or 165mm if unavailable (165mm is what happens to be used on the S and XS frames), instead of the standard 170mm. Perhaps Canyon will allow me to swap those out before shipment.
- My recommended extension length 410 can be achieved with the SLX Aerobar Large which has 360–440 mm (Mid 400). (I haven't checked this for CF.)
- My current Pad Width setup is 180 so the SLX would have been ok there.

Thank you again!