Abstract: A rotor braking mechanism brakes a rotor when a bail arm pivots into the line-releasing position, and includes a moving member and a braking member mounted on a mounting groove formed on the base end of a cylindrical portion. The braking member includes first and second braking members, both of which are made from an elastic material and are approximately semi-circular in shape. The first braking member and the second braking member are press fitted onto the circular mounting groove by a spring member mounted on a groove formed in the outer periphery of the first and second braking members. The braking member includes a drag portion that frictionally and rotatably engages with the mounting groove, and a plurality of engaging portions that engage with the rear end portion of the moving member. With this configuration, the braking force of a rotor braking device is stabilized.

Abstract: A rotor braking mechanism brakes a rotor when a bail arm pivots into the line-releasing position, and includes a moving member and a braking member mounted on a mounting groove formed on the base end of a cylindrical portion. The braking member includes first and second braking members, both of which are made from an elastic material and are approximately semi-circular in shape. The first braking member and the second braking member are press fitted onto the circular mounting groove by a spring member mounted on a groove formed in the outer periphery of the first and second braking members. The braking member includes a drag portion that frictionally and rotatably engages with the mounting groove, and a plurality of engaging portions that engage with the rear end portion of the moving member. With this configuration, the braking force of a rotor braking device is stabilized.

Abstract: A center-pull type calliper brake for a bicycle, which has at the utmost ends of a pair of brake arms pivoted to a fixing arm, holders which are integral with the brake arms for respectively fixing brake shoes. The fixing arm extends from its horizontally intermediate portion upwardly in the pulling direction of a control wire so as to form an extension. The extension has a slot extending along the same. A fixed bolt is inserted into the slot and is adjusted therethrough in its fixed position to fix the fixing arm to the bicycle frame in relation of being adjustable vertically in position.