I'll have a check on the disc size, but I'm sure my NF5 (in the picture) has 296mm disks. They aren't Brembo BTW, they are Sunstar or something.

Brembo do list a 290mm for Hondas, but they have recently updated their website and all I can find is this

http://www.brembo.com/en/Moto/Racing/Prodotti-Competizioni/Documents/Catalogo_Completo.pdf