GP4000 did but they're not likely in stock any more.
GP Urban 35mm comes out more like 34mm but that's no use.
It really depends on your rims anyway. I never measured them but I wonder if GP4000 25 came up big like the 28s? You might find some of those kicking around. Or 4Seasons.
Oh, Pro Optimum (Front) were 25 but came up 27 by design. Problem is I bought all of them for racing on about 10 years ago and they don't make them now. I think I have a new one still but it's a fair bit of hassle just to find out a tyre doesn't fit.
These bad boys served me well in 24hr TTs for years. Wish they still made them. They're 700x25 but come up 27 on skinny rims (for the front, it was specifically wider for extra grip I think).
GP4000 did but they're not likely in stock any more.
GP Urban 35mm comes out more like 34mm but that's no use.
It really depends on your rims anyway. I never measured them but I wonder if GP4000 25 came up big like the 28s? You might find some of those kicking around. Or 4Seasons.
Oh, Pro Optimum (Front) were 25 but came up 27 by design. Problem is I bought all of them for racing on about 10 years ago and they don't make them now. I think I have a new one still but it's a fair bit of hassle just to find out a tyre doesn't fit.