Disk brake unit for a vehicle wheel

摘要

The invention relates to a disk brake unit for a vehicle wheel including a hub and a brake disk. The brake disk includes an outer ring and an inner ring, the inner ring and the outer ring being non-rotatably linked together. The outer ring includes a friction ring. The inner ring includes an internal surface with inner dogs for contacting a hub. The brake disk is adapted to prevent heat from being transmitted from the friction ring to the internal surface.