Originally Posted by late
Conti tires tend to run a bit small. Which means the real size is likely to be 26c. I would suggest looking at a slightly largertire. 32c is a good size.
Tarheel
I don't think will be the case because Dyads are much wider than most road rims -- eg. 24 mm compared to about 19.5 for Open Pro rims. We'll see once I get the tires mounted.
Late is correct in that the Conti's seem to run smaller. It even varies between models of Continental tires. The 28 mm Ultra 3000's are noticably smaller than the 28mm Gatorskins. However, I think 28 mm Contis will be OK, especially if you go for one of the commuting/ touring models which seem to be sized more realistically. While I haven't tried them on the Dyad's, My wife ran 28 mm Conti Ultra Gatorskins on her Mavic 119 rims. Supposedly, they are also 24 mm wide. A lot of fully loaded and commuting miles @ 100 psi with not pinch flats, or real issues. I would still be running the Gatorskins if I could find them in 32mm. They are light and tough. If I have a little time this weekend, I could try mounting a 28mm Gatorskin on the Dyad wheel just to see what it looks like.