Bicycle wheel having a rim and a hub connected by spokes

A bicycle wheel having spokes disposed and connected between a hub collar projected in a centrifugal direction on the outer circumference of each end of a hub and a rim, wherein a hub collar surface is disposed approximately parallel with the spokes at an elevation angle caused by the spokes disposed between the hub collar and the rim, hub holes for inserting hub nipples comprising a circular body are provided in said each hub collar surface extending through approximately at a right angle to said elevation angle, the outer peripheral surface of hub nipples is formed into an approximately same shape capable of being mounted on the inner peripheral surface of hub holes, spoke insert holes for inserting the spokes are bored in the outer peripheral surface of the hub collar into the inner peripheral surface of the hub holes, peripheral restraint walls opposed with said spoke insert holes interposed are stood upright on the outer peripheral surface of the hub collar, one end of the spokes having external threads on both ends thereof and being inserted from the spoke insert hole side is threadedly fastened with internal threads provided in the hub nipple fitted into the hub hole, and the external threads on the other end of the spokes are threadedly fastened to the rim nipple having the internal threads mounted from the inside of the rim into the spoke holes formed in the rim to connect the hub and the rim.