Abstract: A brake device having a pair of cantilevers each of which is connected to an arch wire by a wire connector and which carries a brake shoe assembly. The middle portion of each cantilever is curved away from the fork upon which it is mounted so that the wire connector of the cantilever and the stem of the brake shoe assembly are located on an extension line of the arch wire when viewed from a lateral side of the brake device, thereby reducing the moment developed between these parts. The mount shaft for the brake shoe stem of each brake shoe assembly is inserted into the cantilever from a side of the cantilever that faces the fork and is fastened by a fixing nut at an opposite side of the cantilever, thereby improving serviceability.