| 摘要 |
It is an object of the present invention, in a vehicle-use disc brake in which three pistons are arranged respectively on both sides of a brake disc, to realize the miniaturization of a disc brake and, at the same time, to enhance the merchantability of a motorcycle by simplifying an appearance shape of the disc brake. A first oil passage which makes first and second oil pressure chambers respectively facing back surfaces of the first and second pistons communicate with each other, and a second oil passage which makes third, fourth, fifth and sixth oil pressure chambers respectively facing back surfaces of the third to sixth pistons communicate with each other are formed in the inside of a caliper body.
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