| 摘要 |
PROBLEM TO BE SOLVED: To enlarge effect distribution on a rear brake side during only a pedal operation so as to be suitable for a sportive run while maintaining an interlocked braking function. SOLUTION: A front brake is composed of a three-pot type first front brake caliper 2 and second front brake caliper 3, and a front master cylinder 6 generating hydraulic pressure by a lever 5 is connected to a front pot 21, a middle pot 22, a rear pot 23, and a front pot 31 and a rear pot 33. A rear master cylinder 12 generating hydraulic pressure by a pedal 11 is connected only to a middle pot 32 from a second hydraulic system 14. A first hydraulic system 13 is connected to a front pot 101 and a rear pot 103 in a three-pot type rear brake caliper 10 through a pressure regulating valve 15. The second front brake caliper 3 allows a second master cylinder 7 to generate hydraulic pressure, and the hydraulic pressure is connected to a middle pot 102 through a first pressure regulating valve 8.
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