Braking system for motorcycle

A control unit (28) opens a first on-off valve (44) and closes a second on-off valve (57) when a second operation member (13) is not operated, and the control unit (28) closes the first on-off valve (44), closes the second on-off valve (57), and drives an brake fluid pump (49) when the second operation member (13) is operated. The control unit (28) changes at least one of the output of the brake fluid pump (49) and an opening of a second on-off valve (57) in accordance with a vehicle speed when the second operation member (13) is operated, thereby changing hydraulic pressure supplied to the first braking force generating mechanism (35) when the second operation member (13) is operated.