PURPOSE: To improve the strength of a spoked wheel in a spoked wheel hub of a bicycle or so by drilling spoke fitting holes at certain pitches on respective concentric circles in the equally spaced and parallel relation through both the external periphery and the internal periphery of each of flanges which are formed at both sides of a shaft.

CONSTITUTION: A flange 25 formed at a wheel shaft 21, with the internal peripheral part 23 thicker than the external peripheral part 24, has spoke fitting holes 26 and 27 drilled respectively therethrough at certain pitches on different concentric circles thereof in the equally spaced and has seats 28 recessed in the exterior faces of the spoke fitting holes 27 by a depth which corresponds to a difference between the thicknesses of the internal and external peripheral parts 23 and 24. This configuration permits many spoke fitting holes 26 to be placed through the external periphery, hence allowing additional increase in number of the spokes and providing an aid for dissipating the load which is transmitted therefrom. Moreover the deeper internal spoke fitting hole seats 28 permit the same spokes to be used at both the internal and external sides. The strength of the wheels may be thus improved.