Lower rotational mass. Two-piece rotor design is generally 12-16% lighter than one piece design
Cooler Disc Surface. Ventilation holes between the hat and the disc to air cool the disc surface
Full Sliding Design. Prevents warping or cracking from high heat and high stress. Rotor Disc can expand and contract freely while the hat remains stress free.
Fully changeable rotor ring to reduce running cost in high demand racing applications.