Well I checked the rotor for a stamp and there isn't any. I got out the digital camera and took some shots for you guys though.

The Caliper Notice the bracket says 25T


The Rotor, I measured it for the camera 23mm


I think that honda just uses 25T brackets on 23mm rotors so its easier to slip the caliper over the rotor. Afterall its only 2mm we are talking about here.

I have also read around plenty of other posts that say ITR/5G prelude use 23mm thick rotors.