A control unit (28) controls an association mechanism (22) such that a braking force distribution ratio which is a ratio of a magnitude of a braking force generated for a rear wheel (17) to a magnitude of a braking force generated for a front wheel (15) becomes equal to a first ratio until a locked state detection section (27) detects a locked state of the rear wheel (17) after a first operation member (18) is operated, and the association mechanism (22) such that the braking force distribution ratio becomes equal to a second ratio which is smaller than the first ratio after the locked state of the rear wheel (17) is detected.
