BRAKE OPERATING DEVICE AND BICYCLE COMPRISING A BRAKE OPERATING DEVICE

The present invention relates to a brake operating device (201, 202) and a bicycle (101, 102) including the same. The brake operating device (201, 202) according includes a main body part (250) mounted on a handle, a lever part (210) rotatably coupled to the main body part (250), a hydraulic cylinder part (220) embedded in the main body part (250) and configured to generate a braking force to be provided to a brake pad (500) when the lever part (210) rotates, a sensor part (270) configured to detect a position of the lever part (210), and a reaction force adjustment part (230) configured to adjust a reaction force applied to the lever part (210) in a direction opposite to a rotation direction of the lever part (210) when the lever part rotates (210).