| 摘要 |
A brake device for a bicycle includes a control portion disposed to a front fork of the bicycle, the control portion having a bottom with a tubular element extending therefrom and a first piston received therein with a first resilient element disposed between the first piston and the bottom, hydraulic liquid received between the first piston and the bottom, two pipes respectively communicated with a space filled with hydraulic liquid and connected to a corresponding brake part disposed at the front fork, an actuating device slidably received in the control portion and operated by the brake cable so as to push the first piston toward the bottoms the brake part having a second piston received therein with a rod extending therefrom which has a brake pad disposed at a distal end thereof, a board received in the brake part and the rod extending therethrough, a second resilient element disposed between the second piston and the board such that when the brake cable is pulled to push the first piston to pressurize the hydraulic liquid into the brake part, the second piston and the brake pad are pushed to stop the bicycle.
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