Disk braking device and motorcycle provided with the disk braking device

摘要

The present invention relates to a disk braking device, in which a disk plate (5) fixed to a wheel is interposed by friction members, wherein the disk plate comprises a plurality of through-holes (20a to 20d), which are respectively arranged such that each through-hole is provided on an individual radial line (D) passing through a center (P) of the disk plate.