Hey all, have been a Specialized Turbo fan for years, the top model that isn’t cotton.
The 28mm tires always measured around 29mm on my rims, one is a Zipp 404 and one a Reynolds DV66, neither one very new so I don’t know rim width.
The new T2T5 28mm tires measure 25.5 and 25.1mm with a micrometer. They are noticeably smaller, so much smaller that I quadruple checked to see that I actually had 28mm tires.
That is all