This is a 2-piece big rotor kit that can be used to replace the original equipment. Two types of bell hat mounting structures are available: Type 1, a fixed rigid type, and Type 2, a racing type with full floating processing. Using a big rotor that is one size larger than the original rotor, this part significantly improves braking force, controllability, life cycle, and other performance aspects, and is designed specifically for each vehicle model and can be installed with a bolt-on. The lightweight center bell hat is made of duralumin, which also helps reduce unsprung weight.
This is a two-piece rear big rotor kit that has been enlarged from the original size of 282mm to 313mm.
It is introduced on Ameblo's "M&M HONDA's Honda Honki."
https://ameblo.jp/mandm-honda/entry-12711651464.html?frm=theme
