| 摘要 |
PROBLEM TO BE SOLVED: To increase a support rigidity force on a side remote from a vehicle body causing unnecessary behavior of a caliper body in a structure attaching a turn in side and a turn out side of a disc of the caliper body by tightening and fixing a bolt. SOLUTION: A screw screw-fitting part 13 on one side remote from the center 01 of rotation of a disc rotor 4 among two sets of screw screw-fitting parts 13, 14 on a disc turn in side and a disc turn out side is arranged closer to an inner side in the radial direction of the disc than the screw screw-fitting part 14 on the other side. A length B1 of screwing-in of the screw screw-fitting part 13 on one side is set to be larger than a length B2 of screwing-in of the screw screw-fitting part 14 on the other side.
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