Originally Posted by
merlinextraligh
We've run 28mm Continental GP 4000s on our tandem with Dura Ace Calipers with no issues.
And the 28 stands for 28mm wide, although I do understand the actual width can vary.
The "C" in the equation modifies the 700, not the 28, and refers to the fact that the tires are made for 700c rims.
The tire is desiginated 700c 28mm, although admittedly the 28mm is a nominal measurement that does vary by manufacturer, and rim width.
The problem on your Domane may be that it uses Trek's calipers not Shimano
Not a problem at all...see my original comment...I choose disc because of the wider range of options...I ride 32c on my OEM rims for gravel riding.