Patent ID: 8220357

Claim:
A bicycle shifter, comprising: a tubular base including an inner wall and an outer wall to form a central hole inside the inner wall and an annular space between the inner wall and the outer wall, the base having first teeth defined on an interior surface of the outer wall and second teeth corresponding to the first teeth defined on an exterior surface of the inner wall; a tube fixed to the central hole of the base; a first rotation member rotatably connected to the tube and having a first recess; a second rotation member rotatably connected to the tube and having a second recess, the second rotation member fixed with the first rotation member; and an elastic member having a first elastic portion and a second elastic portion which extends toward a direction opposite to that of the first elastic portion, the elastic member disposed in a space defined between the first and second recesses, the first elastic portion and the second elastic portion protruding out from the first and second rotation members, the first elastic portion engaged with the first teeth and the second elastic portion engaged with the second teeth.