| 主权项 |
1. A bicycle rim brake comprising:
a first brake arm having a first coupling portion, a first actuated portion and a first mounting portion, the first coupling portion including a first mounting fastener that is configured to be mounted to a bicycle and that defines a first pivot axis of the first brake arm, the first mounting portion being configured to mount a first friction member and extending from the first coupling portion; a second brake arm having a second coupling portion; a second actuated portion and a second mounting portion, the second coupling portion including a second mounting fastener that is configured to be mounted to a bicycle and that defines a second pivot axis of the first brake arm, the second mounting portion being configured to mount a second friction member and extending from the second coupling portion; and a hydraulic actuation device including a cylinder housing defining a hydraulic chamber including a first chamber, a second chamber and a third chamber provided between the first and second chambers, the hydraulic actuation device further including a first piston movably disposed in the first chamber of the hydraulic chamber and operatively coupled to the first actuated portion of the first brake arm, and a second piston movably disposed in the second chamber of the hydraulic chamber and operatively coupled to the second actuated portion of the second brake arm. |
